本實用(yong)新型涉及電池(chi)領域，尤其(qi)涉及一種復合(he)式電芯。

背景技術：

隨著，動力工具、無(wu)人機、快充設備市場的(de)(de)(de)日益增長(chang)，大(da)功率充放(fang)電(dian)電(dian)芯(xin)成(cheng)為鋰離子電(dian)池(chi)行業新(xin)的(de)(de)(de)增長(chang)點。為了(le)實現電(dian)芯(xin)大(da)功率充放(fang)電(dian)、減(jian)小電(dian)芯(xin)內(nei)阻，多極(ji)(ji)(ji)(ji)耳(er)(er)卷繞(rao)電(dian)芯(xin)結構逐漸成(cheng)為大(da)功率鋰離子電(dian)池(chi)主流(liu)(liu)結構，但是(shi)考(kao)慮到(dao)多極(ji)(ji)(ji)(ji)耳(er)(er)卷繞(rao)結構加工性(xing)(xing)及(ji)生(sheng)產線現場管(guan)理的(de)(de)(de)問題(ti)，參照圖1，在現有(you)技術一中(zhong)，電(dian)芯(xin)的(de)(de)(de)正極(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)片(pian)(pian)(第一極(ji)(ji)(ji)(ji)片(pian)(pian)1)和負極(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)片(pian)(pian)(第二(er)極(ji)(ji)(ji)(ji)片(pian)(pian)2)的(de)(de)(de)雙面(mian)(mian)均涂覆(fu)(fu)活(huo)(huo)性(xing)(xing)物質(zhi)，這樣的(de)(de)(de)結構導致(zhi)(zhi)負極(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)片(pian)(pian)的(de)(de)(de)最(zui)內(nei)圈的(de)(de)(de)內(nei)側(ce)(ce)與(yu)最(zui)外圈的(de)(de)(de)外側(ce)(ce)均多出一圈活(huo)(huo)性(xing)(xing)物質(zhi)(第二(er)活(huo)(huo)性(xing)(xing)物質(zhi)層(ceng)22)，從(cong)而導致(zhi)(zhi)能(neng)(neng)(neng)量密度(du)的(de)(de)(de)流(liu)(liu)失(shi)和活(huo)(huo)性(xing)(xing)材(cai)(cai)料(liao)的(de)(de)(de)浪費；參照圖2，在現有(you)技術二(er)中(zhong)，不在電(dian)芯(xin)負極(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)片(pian)(pian)(第二(er)極(ji)(ji)(ji)(ji)片(pian)(pian)2)的(de)(de)(de)最(zui)內(nei)圈的(de)(de)(de)內(nei)側(ce)(ce)與(yu)最(zui)外圈的(de)(de)(de)外側(ce)(ce)涂覆(fu)(fu)活(huo)(huo)性(xing)(xing)物質(zhi)(第二(er)活(huo)(huo)性(xing)(xing)物質(zhi)層(ceng)22)，雖然這能(neng)(neng)(neng)夠減(jian)少活(huo)(huo)性(xing)(xing)材(cai)(cai)料(liao)的(de)(de)(de)浪費，避(bi)免能(neng)(neng)(neng)量密度(du)的(de)(de)(de)流(liu)(liu)失(shi)，但是(shi)，負極(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)片(pian)(pian)在生(sheng)產時需要(yao)采用(yong)間歇時涂覆(fu)(fu)，會造成(cheng)生(sheng)產線管(guan)理難點，同時在制作過(guo)程中(zhong)的(de)(de)(de)涂布、冷壓、模切等工序更(geng)容易斷帶、單雙面(mian)(mian)錯位加劇等問題(ti)，導致(zhi)(zhi)優率的(de)(de)(de)降低。

技術實現要素：

鑒(jian)于(yu)(yu)背景技術中存在(zai)的(de)問題，本實用新型(xing)的(de)目的(de)在(zai)于(yu)(yu)提(ti)供(gong)一(yi)種復合(he)式電芯，其(qi)能提(ti)高(gao)所述復合(he)式電芯的(de)能量密(mi)度，并(bing)簡(jian)化所述復合(he)式電芯的(de)成型(xing)工藝。

為了實現上述目的，本實用新型提供了一(yi)(yi)種復合式電芯(xin)，其包括：第(di)(di)(di)一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)，具(ju)有第(di)(di)(di)一(yi)(yi)集流(liu)體和(he)涂覆在(zai)(zai)第(di)(di)(di)一(yi)(yi)集流(liu)體兩(liang)個表面上的第(di)(di)(di)一(yi)(yi)活性(xing)物質(zhi)層(ceng)；第(di)(di)(di)二(er)(er)(er)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)，與第(di)(di)(di)一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)極(ji)(ji)性(xing)相反，具(ju)有第(di)(di)(di)二(er)(er)(er)集流(liu)體和(he)涂覆在(zai)(zai)第(di)(di)(di)二(er)(er)(er)集流(liu)體兩(liang)個表面上的第(di)(di)(di)二(er)(er)(er)活性(xing)物質(zhi)層(ceng)；以(yi)及隔(ge)離(li)膜(mo)(mo)，設置于第(di)(di)(di)一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)和(he)第(di)(di)(di)二(er)(er)(er)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)之間，以(yi)將(jiang)第(di)(di)(di)一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)和(he)第(di)(di)(di)二(er)(er)(er)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)隔(ge)離(li)開；其中，第(di)(di)(di) 一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)、第(di)(di)(di)二(er)(er)(er)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)及隔(ge)離(li)膜(mo)(mo)卷(juan)(juan)(juan)(juan)繞(rao)在(zai)(zai)一(yi)(yi)起形成(cheng)卷(juan)(juan)(juan)(juan)繞(rao)式電芯(xin)。

所述復合式(shi)電芯還包(bao)括(kuo)：第(di)(di)(di)(di)(di)(di)(di)一片(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)，與(yu)第(di)(di)(di)(di)(di)(di)(di)一卷(juan)(juan)繞(rao)(rao)(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)的(de)(de)(de)(de)(de)未(wei)與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)卷(juan)(juan)繞(rao)(rao)(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)相(xiang)對(dui)(dui)的(de)(de)(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)一活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)相(xiang)對(dui)(dui)，且(qie)具(ju)有第(di)(di)(di)(di)(di)(di)(di)三(san)集(ji)流體(ti)和(he)涂覆(fu)在(zai)第(di)(di)(di)(di)(di)(di)(di)三(san)集(ji)流體(ti)上(shang)的(de)(de)(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)三(san)活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)，其中，第(di)(di)(di)(di)(di)(di)(di)一片(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)的(de)(de)(de)(de)(de)極(ji)(ji)(ji)(ji)性(xing)(xing)(xing)(xing)與(yu)第(di)(di)(di)(di)(di)(di)(di)一卷(juan)(juan)繞(rao)(rao)(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)的(de)(de)(de)(de)(de)極(ji)(ji)(ji)(ji)性(xing)(xing)(xing)(xing)相(xiang)反，且(qie)僅在(zai)第(di)(di)(di)(di)(di)(di)(di)三(san)集(ji)流體(ti)與(yu)第(di)(di)(di)(di)(di)(di)(di)一活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)相(xiang)對(dui)(dui)的(de)(de)(de)(de)(de)面上(shang)涂覆(fu)第(di)(di)(di)(di)(di)(di)(di)三(san)活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)；和(he)/或，第(di)(di)(di)(di)(di)(di)(di)二(er)片(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)，與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)卷(juan)(juan)繞(rao)(rao)(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)的(de)(de)(de)(de)(de)未(wei)與(yu)第(di)(di)(di)(di)(di)(di)(di)一卷(juan)(juan)繞(rao)(rao)(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)相(xiang)對(dui)(dui)的(de)(de)(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)二(er)活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)相(xiang)對(dui)(dui)，且(qie)具(ju)有第(di)(di)(di)(di)(di)(di)(di)四集(ji)流體(ti)和(he)涂覆(fu)在(zai)第(di)(di)(di)(di)(di)(di)(di)四集(ji)流體(ti)上(shang)的(de)(de)(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)四活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)，其中，第(di)(di)(di)(di)(di)(di)(di)二(er)片(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)的(de)(de)(de)(de)(de)極(ji)(ji)(ji)(ji)性(xing)(xing)(xing)(xing)與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)卷(juan)(juan)繞(rao)(rao)(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)的(de)(de)(de)(de)(de)極(ji)(ji)(ji)(ji)性(xing)(xing)(xing)(xing)相(xiang)反，且(qie)僅在(zai)第(di)(di)(di)(di)(di)(di)(di)四集(ji)流體(ti)與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)相(xiang)對(dui)(dui)的(de)(de)(de)(de)(de)面上(shang)涂覆(fu)第(di)(di)(di)(di)(di)(di)(di)四活性(xing)(xing)(xing)(xing)物(wu)(wu)(wu)質(zhi)(zhi)層(ceng)(ceng)。

本實(shi)用新型(xing)的有益效果如(ru)下：

在(zai)根據本(ben)實(shi)用新型的(de)(de)(de)復合式(shi)(shi)(shi)電(dian)(dian)芯中，與現有技術一(yi)(yi)的(de)(de)(de)卷(juan)(juan)(juan)(juan)繞(rao)式(shi)(shi)(shi)電(dian)(dian)芯相比，由(you)于第(di)(di)(di)一(yi)(yi)片式(shi)(shi)(shi)極(ji)片的(de)(de)(de)第(di)(di)(di)三(san)(san)(san)活(huo)(huo)性(xing)物(wu)質(zhi)層與第(di)(di)(di)一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)片的(de)(de)(de)未與第(di)(di)(di)二卷(juan)(juan)(juan)(juan)繞(rao)極(ji)片相對(dui)的(de)(de)(de)第(di)(di)(di)一(yi)(yi)活(huo)(huo)性(xing)物(wu)質(zhi)層相對(dui)，從而能(neng)(neng)夠避免(mian)第(di)(di)(di)一(yi)(yi)卷(juan)(juan)(juan)(juan)繞(rao)極(ji)片的(de)(de)(de)未與第(di)(di)(di)二卷(juan)(juan)(juan)(juan)繞(rao)極(ji)片相對(dui)的(de)(de)(de)第(di)(di)(di)一(yi)(yi)活(huo)(huo)性(xing)物(wu)質(zhi)層的(de)(de)(de)浪費；同時(shi)，第(di)(di)(di)一(yi)(yi)片式(shi)(shi)(shi)極(ji)片僅在(zai)第(di)(di)(di)三(san)(san)(san)集流體與第(di)(di)(di)一(yi)(yi)活(huo)(huo)性(xing)物(wu)質(zhi)層相對(dui)的(de)(de)(de)面上涂覆第(di)(di)(di)三(san)(san)(san)活(huo)(huo)性(xing)物(wu)質(zhi)層，從而避免(mian)第(di)(di)(di)三(san)(san)(san)活(huo)(huo)性(xing)物(wu)質(zhi)層的(de)(de)(de)浪費。因此(ci)，本(ben)實(shi)用新型的(de)(de)(de)復合式(shi)(shi)(shi)電(dian)(dian)芯能(neng)(neng)夠提高復合式(shi)(shi)(shi)電(dian)(dian)芯的(de)(de)(de)質(zhi)量能(neng)(neng)量密度和體積(ji)能(neng)(neng)量密度。

在根據本實用(yong)新(xin)型的(de)(de)(de)(de)(de)復(fu)合式(shi)(shi)電芯中，與(yu)(yu)(yu)現有技術一(yi)的(de)(de)(de)(de)(de)卷(juan)繞(rao)(rao)式(shi)(shi)電芯相(xiang)比(bi)，由于(yu)第(di)二(er)(er)片(pian)(pian)(pian)式(shi)(shi)極(ji)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)第(di)四(si)(si)活(huo)(huo)性(xing)物(wu)質(zhi)(zhi)層與(yu)(yu)(yu)第(di)二(er)(er)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)未(wei)與(yu)(yu)(yu)第(di)一(yi)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)相(xiang)對(dui)的(de)(de)(de)(de)(de)第(di)二(er)(er)活(huo)(huo)性(xing)物(wu)質(zhi)(zhi)層相(xiang)對(dui)，從(cong)而(er)(er)能(neng)(neng)(neng)夠避免第(di)二(er)(er)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)未(wei)與(yu)(yu)(yu)第(di)一(yi)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)相(xiang)對(dui)的(de)(de)(de)(de)(de)第(di)二(er)(er)活(huo)(huo)性(xing)物(wu)質(zhi)(zhi)層的(de)(de)(de)(de)(de)浪費(fei)；同(tong)時，第(di)二(er)(er)片(pian)(pian)(pian)式(shi)(shi)極(ji)片(pian)(pian)(pian)僅在第(di)四(si)(si)集流體與(yu)(yu)(yu)第(di)二(er)(er)活(huo)(huo)性(xing)物(wu)質(zhi)(zhi)層相(xiang)對(dui)的(de)(de)(de)(de)(de)面上涂覆(fu)第(di)四(si)(si)活(huo)(huo)性(xing)物(wu)質(zhi)(zhi)層，從(cong)而(er)(er)避免第(di)四(si)(si)活(huo)(huo)性(xing)物(wu)質(zhi)(zhi)層的(de)(de)(de)(de)(de)浪費(fei)。因此，本實用(yong)新(xin)型的(de)(de)(de)(de)(de)復(fu)合式(shi)(shi)電芯能(neng)(neng)(neng)夠提高復(fu)合式(shi)(shi)電芯的(de)(de)(de)(de)(de)質(zhi)(zhi)量(liang)能(neng)(neng)(neng)量(liang)密度(du)和體積能(neng)(neng)(neng)量(liang)密度(du)。

在根據(ju)本實用新型(xing)(xing)的(de)(de)復合(he)式(shi)電芯(xin)(xin)中，與(yu)現有技(ji)術二(er)的(de)(de)卷繞式(shi)電芯(xin)(xin)相比，第一卷繞極(ji)片(pian)(pian)(pian)、第二(er)卷繞極(ji)片(pian)(pian)(pian)、第一片(pian)(pian)(pian)式(shi)極(ji)片(pian)(pian)(pian)及第二(er)片(pian)(pian)(pian)式(shi)極(ji)片(pian)(pian)(pian)均是(shi)采用連(lian)續涂布的(de)(de)方式(shi)制成，產品的(de)(de)成型(xing)(xing)過程簡單、加工(gong)性能(neng)好、合(he)格率高。

附圖說明

圖(tu)1為現有技術一(yi)的(de)(de)卷(juan)繞式(shi)電芯(xin)的(de)(de)示(shi)意圖(tu)；

圖2為現有技(ji)術二(er)的(de)卷(juan)繞式(shi)電(dian)芯的(de)示意(yi)圖；

圖3至(zhi)圖9為根據本實(shi)用新(xin)型的(de)復合式(shi)電芯的(de)多個(ge)實(shi)施例的(de)示(shi)意(yi)圖；

其中，附圖標(biao)記說明如下：

1 第一(yi)卷繞極片 51 第四集(ji)流體

11 第(di)一集流體(ti) 52 第(di)四活(huo)性物(wu)質(zhi)層

12 第一(yi)活性物質層 6 第一(yi)極耳

2 第(di)二卷繞(rao)極片(pian) 7 第(di)二極耳

21 第(di)二集(ji)流(liu)體 8 第(di)三極耳(er)

22 第二活性物質層 9 第四極耳

3 隔(ge)離(li)膜 B 卷繞(rao)式電芯

4 第一片式(shi)極片 B1 水平部(bu)

41 第三集流體(ti) B2 彎折部

42 第(di)三活性(xing)物質層 W 寬度方向

5 第二片式(shi)極片 T 厚度方向

具體實施方式

下面參照(zhao)附圖來詳(xiang)細說明(ming)本實用新(xin)型的復合式電芯。

參照(zhao)圖3至(zhi)圖9，根據本實(shi)用新型的復合式(shi)電芯(xin)包(bao)括：第一(yi)(yi)卷(juan)(juan)(juan)繞(rao)極片(pian)1，具有第一(yi)(yi)集(ji)流體11和(he)涂覆在(zai)第一(yi)(yi)集(ji)流體11兩個表面(mian)上(shang)(shang)的第一(yi)(yi)活性(xing)物質層12；第二(er)(er)卷(juan)(juan)(juan)繞(rao)極片(pian)2，與第一(yi)(yi)卷(juan)(juan)(juan)繞(rao)極片(pian)1極性(xing)相反，具有第二(er)(er)集(ji)流體21和(he)涂覆在(zai)第二(er)(er)集(ji)流體21兩個表面(mian)上(shang)(shang)的第二(er)(er)活性(xing)物質層22；以(yi)及(ji)隔(ge)(ge)離膜(mo)3，設置于第一(yi)(yi)卷(juan)(juan)(juan)繞(rao)極片(pian)1和(he)第二(er)(er)卷(juan)(juan)(juan)繞(rao)極片(pian)2之間，以(yi)將第一(yi)(yi)卷(juan)(juan)(juan)繞(rao)極片(pian)1和(he)第二(er)(er)卷(juan)(juan)(juan)繞(rao)極片(pian)2隔(ge)(ge)離開；其中，第一(yi)(yi)卷(juan)(juan)(juan)繞(rao)極片(pian)1、第二(er)(er)卷(juan)(juan)(juan)繞(rao)極片(pian)2及(ji)隔(ge)(ge)離膜(mo)3卷(juan)(juan)(juan)繞(rao)在(zai)一(yi)(yi)起形(xing)成卷(juan)(juan)(juan)繞(rao)式(shi)電芯(xin)B。

所述復(fu)合式電芯還包括：第(di)(di)(di)(di)(di)一(yi)片(pian)(pian)(pian)式極(ji)(ji)片(pian)(pian)(pian)4，與(yu)(yu)第(di)(di)(di)(di)(di)一(yi)卷(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)1的(de)(de)未(wei)與(yu)(yu)第(di)(di)(di)(di)(di)二(er)(er)卷(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)2相(xiang)(xiang)對(dui)的(de)(de)第(di)(di)(di)(di)(di)一(yi)活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)12相(xiang)(xiang)對(dui)，且(qie)具有第(di)(di)(di)(di)(di)三(san)集(ji)流體41和涂(tu)(tu)覆(fu)在第(di)(di)(di)(di)(di)三(san)集(ji)流體41上(shang)的(de)(de)第(di)(di)(di)(di)(di)三(san)活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)42，其(qi)(qi)中，第(di)(di)(di)(di)(di)一(yi)片(pian)(pian)(pian)式極(ji)(ji)片(pian)(pian)(pian)4的(de)(de)極(ji)(ji)性(xing)(xing)與(yu)(yu)第(di)(di)(di)(di)(di)一(yi)卷(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)1的(de)(de)極(ji)(ji)性(xing)(xing)相(xiang)(xiang)反(fan)，且(qie)僅在第(di)(di)(di)(di)(di)三(san)集(ji)流體41與(yu)(yu)第(di)(di)(di)(di)(di)一(yi)活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)12相(xiang)(xiang)對(dui)的(de)(de)面上(shang)涂(tu)(tu)覆(fu)第(di)(di)(di)(di)(di)三(san)活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)42；和/或，第(di)(di)(di)(di)(di)二(er)(er)片(pian)(pian)(pian)式極(ji)(ji)片(pian)(pian)(pian)5，與(yu)(yu)第(di)(di)(di)(di)(di)二(er)(er)卷(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)2的(de)(de)未(wei)與(yu)(yu)第(di)(di)(di)(di)(di)一(yi)卷(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)1相(xiang)(xiang)對(dui)的(de)(de)第(di)(di)(di)(di)(di)二(er)(er)活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)22相(xiang)(xiang)對(dui)，且(qie)具有第(di)(di)(di)(di)(di)四集(ji)流體 51和涂(tu)(tu)覆(fu)在第(di)(di)(di)(di)(di)四集(ji)流體51上(shang)的(de)(de)第(di)(di)(di)(di)(di)四活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)52，其(qi)(qi)中，第(di)(di)(di)(di)(di)二(er)(er)片(pian)(pian)(pian)式極(ji)(ji)片(pian)(pian)(pian)5的(de)(de)極(ji)(ji)性(xing)(xing)與(yu)(yu)第(di)(di)(di)(di)(di)二(er)(er)卷(juan)繞(rao)極(ji)(ji)片(pian)(pian)(pian)2的(de)(de)極(ji)(ji)性(xing)(xing)相(xiang)(xiang)反(fan)，且(qie)僅在第(di)(di)(di)(di)(di)四集(ji)流體51與(yu)(yu)第(di)(di)(di)(di)(di)二(er)(er)活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)22相(xiang)(xiang)對(dui)的(de)(de)面上(shang)涂(tu)(tu)覆(fu)第(di)(di)(di)(di)(di)四活(huo)(huo)性(xing)(xing)物(wu)質(zhi)層(ceng)(ceng)52。

在根據(ju)本實(shi)(shi)用(yong)新型的(de)(de)(de)復(fu)合(he)式(shi)(shi)電(dian)芯(xin)(xin)中，與(yu)(yu)(yu)現有(you)技術(shu)一(yi)(yi)(yi)的(de)(de)(de)卷(juan)繞(rao)式(shi)(shi)電(dian)芯(xin)(xin)相(xiang)(xiang)比，由于第(di)(di)(di)一(yi)(yi)(yi)片(pian)(pian)式(shi)(shi)極(ji)(ji)(ji)片(pian)(pian)4的(de)(de)(de)第(di)(di)(di)三(san)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)42與(yu)(yu)(yu)第(di)(di)(di)一(yi)(yi)(yi)卷(juan)繞(rao)極(ji)(ji)(ji)片(pian)(pian)1的(de)(de)(de)未與(yu)(yu)(yu)第(di)(di)(di)二卷(juan)繞(rao)極(ji)(ji)(ji)片(pian)(pian)2相(xiang)(xiang)對的(de)(de)(de)第(di)(di)(di)一(yi)(yi)(yi)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)12相(xiang)(xiang)對，從而能(neng)夠避免第(di)(di)(di)一(yi)(yi)(yi)卷(juan)繞(rao)極(ji)(ji)(ji)片(pian)(pian)1的(de)(de)(de)未與(yu)(yu)(yu)第(di)(di)(di)二卷(juan)繞(rao)極(ji)(ji)(ji)片(pian)(pian)2相(xiang)(xiang)對的(de)(de)(de)第(di)(di)(di)一(yi)(yi)(yi)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)12的(de)(de)(de)浪費(鋰(li)離子能(neng)夠在第(di)(di)(di)一(yi)(yi)(yi)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)12和(he)(he)第(di)(di)(di)三(san)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)42之(zhi)間(jian)實(shi)(shi)現往返嵌入和(he)(he)脫(tuo)嵌)；同時(shi)，第(di)(di)(di)一(yi)(yi)(yi)片(pian)(pian)式(shi)(shi)極(ji)(ji)(ji)片(pian)(pian)4僅(jin)在第(di)(di)(di)三(san)集流體41與(yu)(yu)(yu)第(di)(di)(di)一(yi)(yi)(yi)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)12相(xiang)(xiang)對的(de)(de)(de)面上涂覆第(di)(di)(di)三(san)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)42，從而避免第(di)(di)(di)三(san)活(huo)(huo)(huo)(huo)性(xing)(xing)物(wu)質層(ceng)(ceng)42的(de)(de)(de)浪費。因此，本實(shi)(shi)用(yong)新型的(de)(de)(de)復(fu)合(he)式(shi)(shi)電(dian)芯(xin)(xin)能(neng)夠提(ti)高復(fu)合(he)式(shi)(shi)電(dian)芯(xin)(xin)的(de)(de)(de)質量能(neng)量密度(du)和(he)(he)體積能(neng)量密度(du)。

在根據本實(shi)用新型的(de)(de)(de)復合(he)(he)(he)式(shi)電芯中，與(yu)現有技術一(yi)的(de)(de)(de)卷(juan)繞式(shi)電芯相(xiang)(xiang)比，由(you)于第(di)(di)(di)二(er)(er)片(pian)(pian)式(shi)極(ji)片(pian)(pian)5的(de)(de)(de)第(di)(di)(di)四(si)活(huo)性(xing)物(wu)質層(ceng)52與(yu)第(di)(di)(di)二(er)(er)卷(juan)繞極(ji)片(pian)(pian)2的(de)(de)(de)未與(yu)第(di)(di)(di)一(yi)卷(juan)繞極(ji)片(pian)(pian)1相(xiang)(xiang)對(dui)(dui)的(de)(de)(de)第(di)(di)(di)二(er)(er)活(huo)性(xing)物(wu)質層(ceng)22相(xiang)(xiang)對(dui)(dui)，從(cong)而(er)能夠(gou)避(bi)免第(di)(di)(di)二(er)(er)卷(juan)繞極(ji)片(pian)(pian)2的(de)(de)(de)未與(yu)第(di)(di)(di)一(yi)卷(juan)繞極(ji)片(pian)(pian)1相(xiang)(xiang)對(dui)(dui)的(de)(de)(de)第(di)(di)(di)二(er)(er)活(huo)性(xing)物(wu)質層(ceng)22的(de)(de)(de)浪費(fei)(鋰離子(zi)能夠(gou)在第(di)(di)(di)四(si)活(huo)性(xing)物(wu)質層(ceng)52和第(di)(di)(di)二(er)(er)活(huo)性(xing)物(wu)質層(ceng)22之間實(shi)現往返嵌入和脫嵌)；同時，第(di)(di)(di)二(er)(er)片(pian)(pian)式(shi)極(ji)片(pian)(pian)5僅在第(di)(di)(di)四(si)集(ji)流體51與(yu)第(di)(di)(di)二(er)(er)活(huo)性(xing)物(wu)質層(ceng)22相(xiang)(xiang)對(dui)(dui)的(de)(de)(de)面上(shang)涂覆第(di)(di)(di)四(si)活(huo)性(xing)物(wu)質層(ceng)52，從(cong)而(er)避(bi)免第(di)(di)(di)四(si)活(huo)性(xing)物(wu)質層(ceng)52的(de)(de)(de)浪費(fei)。因(yin)此，本實(shi)用新型的(de)(de)(de)復合(he)(he)(he)式(shi)電芯能夠(gou)提高(gao)復合(he)(he)(he)式(shi)電芯的(de)(de)(de)質量能量密(mi)度和體積能量密(mi)度。

在(zai)根據本實用(yong)新型的(de)(de)復(fu)合式(shi)(shi)電芯中，與現有技術二(er)的(de)(de)卷(juan)繞式(shi)(shi)電芯相比，第(di)一卷(juan)繞極(ji)片1、第(di)二(er)卷(juan)繞極(ji)片2、第(di)一片式(shi)(shi)極(ji)片4及第(di)二(er)片式(shi)(shi)極(ji)片5均是采用(yong)連續涂布(bu)的(de)(de)方式(shi)(shi)制成(cheng)，產品(pin)的(de)(de)成(cheng)型過程簡單、加工性能好、合格率高。

在(zai)根據本實用(yong)新型(xing)的(de)(de)復(fu)合式(shi)電芯中的(de)(de)一(yi)(yi)(yi)(yi)實施例中，參照圖(tu)(tu)4和(he)圖(tu)(tu)5，卷(juan)(juan)(juan)繞(rao)(rao)式(shi)電芯B卷(juan)(juan)(juan)繞(rao)(rao)最(zui)(zui)內(nei)圈(quan)為第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1的(de)(de)最(zui)(zui)內(nei)圈(quan)；一(yi)(yi)(yi)(yi)個(ge)第(di)(di)(di)一(yi)(yi)(yi)(yi)片(pian)(pian)(pian)式(shi)極(ji)(ji)片(pian)(pian)(pian)4設置于第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1最(zui)(zui)內(nei)圈(quan)的(de)(de)兩(liang)層第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1之間(jian)，并(bing)由隔離膜3將所述一(yi)(yi)(yi)(yi)個(ge)第(di)(di)(di)一(yi)(yi)(yi)(yi)片(pian)(pian)(pian)式(shi)極(ji)(ji)片(pian)(pian)(pian)4和(he)第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1隔開。由于第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1的(de)(de)最(zui)(zui)內(nei)圈(quan)的(de)(de)兩(liang)層第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1位于卷(juan)(juan)(juan)繞(rao)(rao)式(shi)電芯B卷(juan)(juan)(juan)繞(rao)(rao)的(de)(de)最(zui)(zui)內(nei)圈(quan)，所以(yi)(yi)這(zhe)兩(liang)層第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1一(yi)(yi)(yi)(yi)側(ce)(圖(tu)(tu)4和(he)圖(tu)(tu)5中靠近第(di)(di)(di)一(yi)(yi)(yi)(yi)片(pian)(pian)(pian)式(shi)極(ji)(ji)片(pian)(pian)(pian)4的(de)(de)一(yi)(yi)(yi)(yi)側(ce))的(de)(de)第(di)(di)(di)一(yi)(yi)(yi)(yi)活(huo)性物質(zhi)(zhi)層12無法(fa)與第(di)(di)(di)二卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)2的(de)(de)第(di)(di)(di)二活(huo)性物質(zhi)(zhi)層22相對，所以(yi)(yi)在(zai)這(zhe)兩(liang)層第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1之間(jian)設置一(yi)(yi)(yi)(yi)個(ge)第(di)(di)(di)一(yi)(yi)(yi)(yi)片(pian)(pian)(pian)式(shi)極(ji)(ji)片(pian)(pian)(pian)4，以(yi)(yi)避免所述第(di)(di)(di)一(yi)(yi)(yi)(yi)活(huo)性物質(zhi)(zhi)層12的(de)(de)浪(lang) 費。所述一(yi)(yi)(yi)(yi)個(ge)第(di)(di)(di)一(yi)(yi)(yi)(yi)片(pian)(pian)(pian)式(shi)極(ji)(ji)片(pian)(pian)(pian)4可以(yi)(yi)插入(ru)到(dao)第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1最(zui)(zui)內(nei)圈(quan)的(de)(de)兩(liang)層第(di)(di)(di)一(yi)(yi)(yi)(yi)卷(juan)(juan)(juan)繞(rao)(rao)極(ji)(ji)片(pian)(pian)(pian)1之間(jian)。

在根(gen)據(ju)本實用新型的(de)(de)復合式(shi)電(dian)芯中的(de)(de)一實施例中，參照圖(tu)(tu)3、圖(tu)(tu)6和(he)圖(tu)(tu)8，卷(juan)繞(rao)(rao)式(shi)電(dian)芯B卷(juan)繞(rao)(rao)最(zui)(zui)(zui)內(nei)(nei)圈(quan)(quan)(quan)為第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2的(de)(de)最(zui)(zui)(zui)內(nei)(nei)圈(quan)(quan)(quan)；一個第(di)(di)(di)二(er)(er)(er)片(pian)(pian)(pian)(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)5設(she)置于(yu)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2最(zui)(zui)(zui)內(nei)(nei)圈(quan)(quan)(quan)的(de)(de)兩層(ceng)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2之間，并由(you)隔離膜3將所(suo)(suo)述(shu)一個第(di)(di)(di)二(er)(er)(er)片(pian)(pian)(pian)(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)5和(he)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2隔開。由(you)于(yu)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2的(de)(de)最(zui)(zui)(zui)內(nei)(nei)圈(quan)(quan)(quan)的(de)(de)兩層(ceng)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2位于(yu)卷(juan)繞(rao)(rao)式(shi)電(dian)芯B卷(juan)繞(rao)(rao)的(de)(de)最(zui)(zui)(zui)內(nei)(nei)圈(quan)(quan)(quan)，所(suo)(suo)以(yi)這兩層(ceng)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2一側(圖(tu)(tu)3、圖(tu)(tu)6和(he)圖(tu)(tu)8中靠(kao)近(jin)第(di)(di)(di)二(er)(er)(er)片(pian)(pian)(pian)(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)5的(de)(de)一側)的(de)(de)第(di)(di)(di)二(er)(er)(er)活性物(wu)質(zhi)(zhi)層(ceng)22無法與第(di)(di)(di)一卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)1的(de)(de)第(di)(di)(di)一活性物(wu)質(zhi)(zhi)層(ceng)12相對，所(suo)(suo)以(yi)在這兩層(ceng)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2之間設(she)置一個第(di)(di)(di)二(er)(er)(er)片(pian)(pian)(pian)(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)5，以(yi)避免所(suo)(suo)述(shu)第(di)(di)(di)二(er)(er)(er)活性物(wu)質(zhi)(zhi)層(ceng)22的(de)(de)浪費。所(suo)(suo)述(shu)一個第(di)(di)(di)二(er)(er)(er)片(pian)(pian)(pian)(pian)式(shi)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)5可以(yi)插入到第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2最(zui)(zui)(zui)內(nei)(nei)圈(quan)(quan)(quan)的(de)(de)兩層(ceng)第(di)(di)(di)二(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2之間。

在(zai)根據本實用(yong)新型的復(fu)合式電芯中(zhong)的一(yi)(yi)實施例中(zhong)，參照圖(tu)7，第一(yi)(yi)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)1的最內(nei)圈(quan)(quan)與(yu)第二(er)(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)2的最內(nei)圈(quan)(quan)形成對(dui)插式結(jie)構(gou)。這種對(dui)插式結(jie)構(gou)使得第一(yi)(yi)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)1最內(nei)圈(quan)(quan)的第一(yi)(yi)活性(xing)(xing)物(wu)質(zhi)層(ceng)12均能夠與(yu)第二(er)(er)(er)(er)卷(juan)繞(rao)(rao)極(ji)片(pian)(pian)(pian)2最內(nei)圈(quan)(quan)的第二(er)(er)(er)(er)活性(xing)(xing)物(wu)質(zhi)層(ceng)22相(xiang)對(dui)，避(bi)免所述第一(yi)(yi)活性(xing)(xing)物(wu)質(zhi)層(ceng)12和第二(er)(er)(er)(er)活性(xing)(xing)物(wu)質(zhi)層(ceng)22的浪費，且無需(xu)插入第一(yi)(yi)片(pian)(pian)(pian)式極(ji)片(pian)(pian)(pian)4或第二(er)(er)(er)(er)片(pian)(pian)(pian)式極(ji)片(pian)(pian)(pian)5，結(jie)構(gou)簡單。

在(zai)根據本(ben)實(shi)(shi)用新(xin)型(xing)的(de)復(fu)合式(shi)(shi)(shi)(shi)電(dian)(dian)芯(xin)中(zhong)的(de)一(yi)(yi)實(shi)(shi)施例(li)中(zhong)，參(can)照圖4，卷(juan)(juan)(juan)繞式(shi)(shi)(shi)(shi)電(dian)(dian)芯(xin)B收尾的(de)最外圈(quan)為第(di)(di)一(yi)(yi)卷(juan)(juan)(juan)繞極片1，卷(juan)(juan)(juan)繞式(shi)(shi)(shi)(shi)電(dian)(dian)芯(xin)B具有沿寬度(du)方(fang)向W延伸的(de)兩(liang)個(ge)水平部(bu)(bu)B1以及(ji)兩(liang)個(ge)彎折部(bu)(bu)B2，且至少(shao)在(zai)一(yi)(yi)個(ge)水平部(bu)(bu)B1上設置一(yi)(yi)個(ge)第(di)(di)一(yi)(yi)片式(shi)(shi)(shi)(shi)極片4。第(di)(di)一(yi)(yi)片式(shi)(shi)(shi)(shi)極片4通過(guo)熱壓固定在(zai)最外圈(quan)的(de)第(di)(di)一(yi)(yi)卷(juan)(juan)(juan)繞極片1上。第(di)(di)一(yi)(yi)片式(shi)(shi)(shi)(shi)極片4僅一(yi)(yi)面(mian)上涂覆第(di)(di)三活性物質層42，因(yin)此所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)(dian)芯(xin)可以直接以第(di)(di)一(yi)(yi)片式(shi)(shi)(shi)(shi)極片4收尾，并省去兩(liang)圈(quan)隔離膜(mo)3，進(jin)一(yi)(yi)步減少(shao)材料的(de)浪費，提高所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)(dian)芯(xin)的(de)能量(liang)密度(du)。

在根據本(ben)實用新(xin)型(xing)的(de)(de)(de)復(fu)合式(shi)電(dian)芯(xin)(xin)中(zhong)的(de)(de)(de)一(yi)(yi)實施例中(zhong)，參照圖3、圖5、圖7及圖9，卷繞(rao)式(shi)電(dian)芯(xin)(xin)B收(shou)尾的(de)(de)(de)最外圈(quan)為第二(er)(er)卷繞(rao)極片(pian)2，卷繞(rao)式(shi)電(dian)芯(xin)(xin)B具(ju)有沿寬度方向W延伸的(de)(de)(de)兩個(ge)水(shui)平部B1以(yi)及兩個(ge)彎(wan)折部B2，且至少在一(yi)(yi)個(ge)水(shui)平部B1上(shang)設置一(yi)(yi)個(ge)第二(er)(er)片(pian)式(shi)極片(pian)5。第二(er)(er)片(pian)式(shi)極片(pian)5通過熱壓固定在最外圈(quan)的(de)(de)(de)第一(yi)(yi)卷繞(rao)極片(pian)1上(shang)。第二(er)(er)片(pian)式(shi)極片(pian)5僅一(yi)(yi)面上(shang)涂覆(fu)第四活性物質層52，因此所(suo)述復(fu)合式(shi)電(dian)芯(xin)(xin)可以(yi)直接以(yi)第二(er)(er)片(pian)式(shi)極片(pian)5收(shou)尾，并省去兩圈(quan)隔離膜3， 進一(yi)(yi)步減少材料的(de)(de)(de)浪(lang)費，提高所(suo)述復(fu)合式(shi)電(dian)芯(xin)(xin)的(de)(de)(de)能量密度。

在根據本實用新型的復合式電芯中的一實施例(li)中，參照圖6，卷(juan)(juan)繞式電芯B收(shou)尾(wei)(wei)的最(zui)外(wai)圈(quan)的一部(bu)分(fen)為第一卷(juan)(juan)繞極片(pian)1，剩余部(bu)分(fen)為第二卷(juan)(juan)繞極片(pian)2；對應地在第一卷(juan)(juan)繞極片(pian)1收(shou)尾(wei)(wei)部(bu)分(fen)的外(wai)側設置一個第一片(pian)式極片(pian)4。

在根據本實(shi)用新型的(de)復合式電芯(xin)中(zhong)的(de)一(yi)(yi)實(shi)施例中(zhong)，參照圖(tu)6，卷繞式電芯(xin)B收(shou)尾(wei)的(de)最外圈的(de)一(yi)(yi)部分(fen)為(wei)第(di)一(yi)(yi)卷繞極(ji)(ji)片(pian)1，剩余部分(fen)為(wei)第(di)二卷繞極(ji)(ji)片(pian)2；在第(di)二卷繞極(ji)(ji)片(pian)2收(shou)尾(wei)部分(fen)的(de)外側(ce)設置(zhi)一(yi)(yi)個(ge)第(di)二片(pian)式極(ji)(ji)片(pian)5。

在根(gen)據(ju)本實用新型的(de)(de)(de)復(fu)合式(shi)(shi)(shi)(shi)電(dian)芯(xin)中(zhong)的(de)(de)(de)一(yi)(yi)(yi)實施例中(zhong)，參(can)照(zhao)(zhao)圖(tu)3至(zhi)(zhi)圖(tu)9，所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)芯(xin)包(bao)括(kuo)：多個(ge)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)極(ji)(ji)耳(er)(er)6，與(yu)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)集流體11固(gu)(gu)(gu)定電(dian)連(lian)接(jie)(jie)(jie)；多個(ge)第(di)(di)(di)(di)(di)(di)(di)二(er)極(ji)(ji)耳(er)(er)7，與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)集流體21固(gu)(gu)(gu)定電(dian)連(lian)接(jie)(jie)(jie)。參(can)照(zhao)(zhao)圖(tu)4至(zhi)(zhi)圖(tu)6，當所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)芯(xin)包(bao)括(kuo)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)4時，所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)芯(xin)還包(bao)括(kuo)：第(di)(di)(di)(di)(di)(di)(di)三(san)極(ji)(ji)耳(er)(er)8，與(yu)對(dui)應的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)4的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)三(san)集流體41固(gu)(gu)(gu)定電(dian)連(lian)接(jie)(jie)(jie)。參(can)照(zhao)(zhao)圖(tu)3、圖(tu)5至(zhi)(zhi)圖(tu)9，當所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)芯(xin)包(bao)括(kuo)第(di)(di)(di)(di)(di)(di)(di)二(er)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)5時，所(suo)述復(fu)合式(shi)(shi)(shi)(shi)電(dian)芯(xin)還包(bao)括(kuo)：第(di)(di)(di)(di)(di)(di)(di)四(si)極(ji)(ji)耳(er)(er)9，與(yu)對(dui)應的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)二(er)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)5的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)四(si)集流體51固(gu)(gu)(gu)定電(dian)連(lian)接(jie)(jie)(jie)。一(yi)(yi)(yi)個(ge)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)卷(juan)繞極(ji)(ji)片(pian)(pian)1的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)集流體11可(ke)以(yi)固(gu)(gu)(gu)定多個(ge)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)極(ji)(ji)耳(er)(er)6，一(yi)(yi)(yi)個(ge)第(di)(di)(di)(di)(di)(di)(di)二(er)卷(juan)繞極(ji)(ji)片(pian)(pian)2的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)二(er)集流體21可(ke)以(yi)固(gu)(gu)(gu)定多個(ge)第(di)(di)(di)(di)(di)(di)(di)二(er)極(ji)(ji)耳(er)(er)7，而由于第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)4和(he)第(di)(di)(di)(di)(di)(di)(di)二(er)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)5均為一(yi)(yi)(yi)層單(dan)片(pian)(pian)式(shi)(shi)(shi)(shi)的(de)(de)(de)極(ji)(ji)片(pian)(pian)，所(suo)以(yi)一(yi)(yi)(yi)個(ge)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)4的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)三(san)集流體41可(ke)固(gu)(gu)(gu)定一(yi)(yi)(yi)個(ge)第(di)(di)(di)(di)(di)(di)(di)三(san)極(ji)(ji)耳(er)(er)8，一(yi)(yi)(yi)個(ge)第(di)(di)(di)(di)(di)(di)(di)二(er)片(pian)(pian)式(shi)(shi)(shi)(shi)極(ji)(ji)片(pian)(pian)5的(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)四(si)集流體51可(ke)固(gu)(gu)(gu)定一(yi)(yi)(yi)個(ge)第(di)(di)(di)(di)(di)(di)(di)四(si)極(ji)(ji)耳(er)(er)9。

在根據本(ben)實(shi)用(yong)新型的(de)復(fu)合(he)(he)式(shi)電芯(xin)中的(de)一(yi)實(shi)施例(li)中，各(ge)第(di)(di)(di)(di)(di)一(yi)極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)6與第(di)(di)(di)(di)(di)一(yi)集(ji)(ji)(ji)流(liu)(liu)體(ti)11一(yi)體(ti)形(xing)成(cheng)；各(ge)第(di)(di)(di)(di)(di)二極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)7與第(di)(di)(di)(di)(di)二集(ji)(ji)(ji)流(liu)(liu)體(ti)21一(yi)體(ti)形(xing)成(cheng)；當(dang)所述復(fu)合(he)(he)式(shi)電芯(xin)包(bao)括第(di)(di)(di)(di)(di)三極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)8時，第(di)(di)(di)(di)(di)三極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)8與第(di)(di)(di)(di)(di)一(yi)片式(shi)極(ji)(ji)(ji)(ji)(ji)片4的(de)第(di)(di)(di)(di)(di)三集(ji)(ji)(ji)流(liu)(liu)體(ti)41一(yi)體(ti)形(xing)成(cheng)；當(dang)所述復(fu)合(he)(he)式(shi)電芯(xin)包(bao)括第(di)(di)(di)(di)(di)四(si)極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)9時，第(di)(di)(di)(di)(di)四(si)極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)9與第(di)(di)(di)(di)(di)二片式(shi)極(ji)(ji)(ji)(ji)(ji)片5的(de)第(di)(di)(di)(di)(di)四(si)集(ji)(ji)(ji)流(liu)(liu)體(ti)51一(yi)體(ti)形(xing)成(cheng)。例(li)如，第(di)(di)(di)(di)(di)一(yi)極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)6由第(di)(di)(di)(di)(di)一(yi)集(ji)(ji)(ji)流(liu)(liu)體(ti)11模(mo)切(qie)而(er)成(cheng)，第(di)(di)(di)(di)(di)二極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)7由第(di)(di)(di)(di)(di)二集(ji)(ji)(ji)流(liu)(liu)體(ti)21模(mo)切(qie)而(er)成(cheng)，第(di)(di)(di)(di)(di)三極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)8由第(di)(di)(di)(di)(di)三集(ji)(ji)(ji)流(liu)(liu)體(ti)41模(mo)切(qie)而(er)成(cheng)，第(di)(di)(di)(di)(di)四(si)極(ji)(ji)(ji)(ji)(ji)耳(er)(er)(er)(er)(er)(er)8由第(di)(di)(di)(di)(di)四(si)集(ji)(ji)(ji)流(liu)(liu)體(ti)51模(mo)切(qie)而(er)成(cheng)。

在根據(ju)本實(shi)用新型(xing)的(de)復合式(shi)電(dian)芯中(zhong)的(de)一(yi)(yi)(yi)(yi)實(shi)施例中(zhong)，參照圖(tu)3至(zhi)圖(tu)9，所(suo)述多(duo)個(ge)第(di)(di)一(yi)(yi)(yi)(yi)極(ji)耳(er)6在厚(hou)度(du)方向(xiang)T上相互(hu)對齊(qi)(qi)(但是(shi)，由于加工誤(wu)差，各第(di)(di)一(yi)(yi)(yi)(yi)極(ji)耳(er)6的(de)對齊(qi)(qi)位(wei)置(zhi)也允許一(yi)(yi)(yi)(yi)定的(de)偏差)；所(suo)述多(duo)個(ge)第(di)(di)二極(ji)耳(er)7在厚(hou)度(du)方向(xiang)T上相互(hu)對齊(qi)(qi)(但是(shi)，由于加工誤(wu)差，各第(di)(di)二極(ji)耳(er)7的(de)對齊(qi)(qi)位(wei)置(zhi)也允許一(yi)(yi)(yi)(yi)定的(de) 偏差)。參照圖(tu)4至(zhi)圖(tu)6，當所(suo)述復合式(shi)電(dian)芯包括(kuo)第(di)(di)三極(ji)耳(er)8時(shi)，第(di)(di)三極(ji)耳(er)8與第(di)(di)二極(ji)耳(er)7在厚(hou)度(du)方向(xiang)T上相互(hu)對齊(qi)(qi)。參照圖(tu)3、圖(tu)5至(zhi)圖(tu)9，當所(suo)述復合式(shi)電(dian)芯包括(kuo)第(di)(di)四(si)極(ji)耳(er)9時(shi)，第(di)(di)四(si)極(ji)耳(er)9與第(di)(di)一(yi)(yi)(yi)(yi)極(ji)耳(er)6在厚(hou)度(du)方向(xiang)T上相互(hu)對齊(qi)(qi)。

在根據本實(shi)用新型的復合式(shi)(shi)電芯中(zhong)的一(yi)實(shi)施例中(zhong)，第(di)一(yi)卷(juan)繞(rao)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)1為(wei)正極(ji)(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)，第(di)二卷(juan)繞(rao)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)2為(wei)負(fu)極(ji)(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)，第(di)一(yi)片(pian)(pian)(pian)(pian)式(shi)(shi)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)4為(wei)負(fu)極(ji)(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)，第(di)二片(pian)(pian)(pian)(pian)式(shi)(shi)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)5為(wei)正極(ji)(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)(ji)片(pian)(pian)(pian)(pian)。對(dui)應地(di)，第(di)一(yi)活性物(wu)質(zhi)層(ceng)(ceng)(ceng)12和第(di)四活性物(wu)質(zhi)層(ceng)(ceng)(ceng)52為(wei)正極(ji)(ji)(ji)(ji)(ji)活性物(wu)質(zhi)層(ceng)(ceng)(ceng)，具體可以(yi)為(wei)鈷酸鋰、磷酸鐵鋰、錳酸鋰中(zhong)的至少一(yi)種。第(di)二活性物(wu)質(zhi)層(ceng)(ceng)(ceng)22和第(di)三活性物(wu)質(zhi)層(ceng)(ceng)(ceng)32為(wei)負(fu)極(ji)(ji)(ji)(ji)(ji)活性物(wu)質(zhi)層(ceng)(ceng)(ceng)，具體可以(yi)為(wei)碳(tan)和硅中(zhong)的至少一(yi)種。

在根據本實(shi)用新型的復合(he)式電芯中的一(yi)實(shi)施例中，第(di)(di)一(yi)卷繞極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)1為(wei)(wei)負極(ji)(ji)極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)，第(di)(di)二(er)卷繞極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)2為(wei)(wei)正極(ji)(ji)極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)，第(di)(di)一(yi)片(pian)(pian)(pian)(pian)(pian)式極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)4為(wei)(wei)正極(ji)(ji)極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)，第(di)(di)二(er)片(pian)(pian)(pian)(pian)(pian)式極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)5為(wei)(wei)負極(ji)(ji)極(ji)(ji)片(pian)(pian)(pian)(pian)(pian)。對應地(di)，第(di)(di)二(er)活性(xing)物(wu)質(zhi)(zhi)(zhi)層(ceng)(ceng)22和第(di)(di)三活性(xing)物(wu)質(zhi)(zhi)(zhi)層(ceng)(ceng)32為(wei)(wei)正極(ji)(ji)活性(xing)物(wu)質(zhi)(zhi)(zhi)層(ceng)(ceng)，具(ju)體可以(yi)為(wei)(wei)鈷酸鋰、磷(lin)酸鐵(tie)鋰、錳酸鋰中的至少一(yi)種。第(di)(di)一(yi)活性(xing)物(wu)質(zhi)(zhi)(zhi)層(ceng)(ceng)12和第(di)(di)四(si)活性(xing)物(wu)質(zhi)(zhi)(zhi)層(ceng)(ceng)52為(wei)(wei)負極(ji)(ji)活性(xing)物(wu)質(zhi)(zhi)(zhi)層(ceng)(ceng)，具(ju)體可以(yi)為(wei)(wei)碳(tan)和硅中的至少一(yi)種。