18650鋰電池組包含大概(gai)三個部分：18650鋰(li)電(dian)池(chi)(chi)(chi)、電(dian)池(chi)(chi)(chi)保護板、外包裝(zhuang)。把多(duo)個18650鋰(li)電(dian)池(chi)(chi)(chi)串聯或者并(bing)聯起來(lai)得(de)到所需要的電(dian)池(chi)(chi)(chi)組(zu)工(gong)作電(dian)壓和放(fang)電(dian)電(dian)流。 那(nei)么18650鋰(li)電(dian)池(chi)(chi)(chi)串聯與(yu)并(bing)聯有什么不(bu)同(tong)？下面跟著小(xiao)編(bian)一(yi)起來(lai)看看18650鋰(li)電(dian)池(chi)(chi)(chi)串聯與(yu)并(bing)聯吧！

一、18650鋰電池串聯
把多個18650鋰(li)(li)(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)起(qi)(qi)來(lai)，可以等(deng)到得到所(suo)組合電(dian)(dian)(dian)池(chi)(chi)(chi)個數相加的(de)電(dian)(dian)(dian)壓值，但(dan)是電(dian)(dian)(dian)流(liu)不(bu)(bu)(bu)(bu)變，鋰(li)(li)(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)的(de)原理就是電(dian)(dian)(dian)壓增加，電(dian)(dian)(dian)流(liu)不(bu)(bu)(bu)(bu)變。電(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)帶來(lai)的(de)高(gao)電(dian)(dian)(dian)壓也(ye)存在(zai)著一(yi)些嚴重的(de)問題，如(ru)果18650鋰(li)(li)(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)組串聯(lian)起(qi)(qi)來(lai)工(gong)作(zuo)(zuo)時(shi)，當其中有(you)一(yi)節18650鋰(li)(li)(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)失效了就會影響(xiang)整(zheng)個電(dian)(dian)(dian)池(chi)(chi)(chi)組的(de)電(dian)(dian)(dian)壓下降，使(shi)用的(de)時(shi)間急劇縮(suo)短，而且壞的(de)那(nei)一(yi)節18650鋰(li)(li)(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)有(you)很大(da)的(de)內阻，如(ru)果此(ci)時(shi)還(huan)強行工(gong)作(zuo)(zuo)的(de)話就會導致(zhi)整(zheng)個電(dian)(dian)(dian)池(chi)(chi)(chi)組的(de)輸出電(dian)(dian)(dian)壓下降很大(da)。串聯(lian)電(dian)(dian)(dian)池(chi)(chi)(chi)對于(yu)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)基本參數要(yao)求(qiu)不(bu)(bu)(bu)(bu)是太高(gao)，但(dan)是電(dian)(dian)(dian)池(chi)(chi)(chi)一(yi)致(zhi)性還(huan)是越高(gao)越好，主要(yao)原因是電(dian)(dian)(dian)池(chi)(chi)(chi)使(shi)用有(you)一(yi)個衰減(jian)過程，不(bu)(bu)(bu)(bu)一(yi)致(zhi)的(de)參數，會導致(zhi)電(dian)(dian)(dian)池(chi)(chi)(chi)某節電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)衰減(jian)速度加快，串聯(lian)電(dian)(dian)(dian)路壞了一(yi)節，全盤都報廢了，不(bu)(bu)(bu)(bu)過好在(zai)這(zhe)種效果不(bu)(bu)(bu)(bu)是很強烈，影響(xiang)不(bu)(bu)(bu)(bu)大(da)，只要(yao)不(bu)(bu)(bu)(bu)用不(bu)(bu)(bu)(bu)同類(lei)型，不(bu)(bu)(bu)(bu)同容量的(de)電(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)，基本無大(da)礙。

二、18650鋰電池并聯
把多(duo)節18650鋰電(dian)池并(bing)聯組合起來，就可以得(de)到更大(da)的電(dian)量(liang)，說的專(zhuan)業一點的是(shi)“容量(liang)”。鋰電(dian)池并(bing)聯是(shi)電(dian)壓不變，容量(liang)增加。有(you)多(duo)少節鋰電(dian)池并(bing)聯，總(zong)容量(liang)就是(shi)所(suo)有(you)單節鋰電(dian)池容量(liang)相加起來的總(zong)值。

三、18650鋰電串并聯相結合

串并聯組合方法就是先把幾組串聯好的鋰電池組，再進行并聯，這樣(yang)不僅(jin)僅(jin)提(ti)高(gao)了電(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)的輸出(chu)電(dian)(dian)(dian)(dian)壓(ya)(ya)，同時也大大提(ti)高(gao)了18650鋰(li)(li)電(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)的容量，就像我(wo)們經常用到的交(jiao)通工(gong)具電(dian)(dian)(dian)(dian)動自行車鋰(li)(li)電(dian)(dian)(dian)(dian)池(chi)(chi)一樣(yang)。就是用這鐘組(zu)合方(fang)式來形成 36V/20Ah的高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)高(gao)容量的。單節18650鋰(li)(li)電(dian)(dian)(dian)(dian)池(chi)(chi)一般都是3.7V ，要(yao)做到36V高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)那(nei)就要(yao)10組(zu)串聯電(dian)(dian)(dian)(dian)池(chi)(chi)來組(zu)成。

好了(le)，上面幾點就是我個人平時積(ji)累的一些關于18650鋰電池組并(bing)聯與(yu)串聯的區(qu)別小(xiao)知識，很高(gao)興能(neng)分(fen)享給大家看(kan)到。