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聚合物锂电池和液态锂电池哪个更好?

2022-07-25

聚合物锂电池

由于(yu)各锂(li)(li)电(dian)(dian)池(chi)(chi)厂商在(zai)生(sheng)(sheng)产(chan)(chan)工艺和(he)电(dian)(dian)池(chi)(chi)原材料配方上(shang)的差(cha)异(yi),市场(chang)上(shang)的聚(ju)合(he)(he)物(wu)电(dian)(dian)池(chi)(chi)分(fen)为缠绕型和(he)重叠型两(liang)种不同的结构。相反(fan),越厚的液(ye)体(ti)(ti)锂(li)(li)电(dian)(dian)池(chi)(chi)越好生(sheng)(sheng)产(chan)(chan),小于(yu)4mm厚度的电(dian)(dian)池(chi)(chi)很难生(sheng)(sheng)产(chan)(chan),即(ji)使生(sheng)(sheng)产(chan)(chan)出来(lai),容量明显(xian)不如聚(ju)合(he)(he)物(wu)锂(li)(li)电(dian)(dian)池(chi)(chi),在(zai)成(cheng)本(ben)(ben)上(shang)也没有优势。因此,电(dian)(dian)池(chi)(chi)越薄,聚(ju)合(he)(he)物(wu)生(sheng)(sheng)产(chan)(chan)成(cheng)本(ben)(ben)越低,液(ye)体(ti)(ti)生(sheng)(sheng)产(chan)(chan)成(cheng)本(ben)(ben)越高。

规格(ge)较厚,液(ye)态锂电(dian)池供应链成(cheng)(cheng)熟,工艺成(cheng)(cheng)熟,生产效(xiao)率(lv)(lv)高(gao),成(cheng)(cheng)品率(lv)(lv)高(gao),具有较强(qiang)的成(cheng)(cheng)本优势(shi)。从(cong)目前(qian)的市(shi)场(chang)来看,5mm和(he)6mm系列(lie)液(ye)态锂电(dian)池的容(rong)量要(yao)比3mm和(he)4mm系列(lie)大(da)得多(duo),但价格(ge)要(yao)低得多(duo)。从(cong)理论上讲,5mm和(he)6mm厚度规格(ge)的聚合(he)物锂电(dian)池的材料成(cheng)(cheng)本接近于液(ye)体,但5mm和(he)6mm系列(lie)电(dian)池的工艺成(cheng)(cheng)本远高(gao)于液(ye)体。

大多数规格(ge)适合手机需求低(di)于4毫(hao)米厚(hou)度。与液体(ti)(ti)锂(li)电(dian)池相(xiang)比(bi),聚(ju)合物锂(li)电(dian)池采用(yong)薄(bo)铝(lv)膜包装,这比(bi)钢铁和(he)铝(lv)壳更薄(bo),生产方法不同于液体(ti)(ti)锂(li)电(dian)池。聚(ju)合物电(dian)池越薄(bo),产量越高。理论上,他们可以生产出厚(hou)度小(xiao)于0.5mm的(de)电(dian)池。


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