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锂电池制造商对外壳特性保护

2023-05-25


首先,锂,原子(zi)(zi)(zi)序数(shu)(shu)为3,原子(zi)(zi)(zi)量为6.941,是一(yi)种非(fei)常轻(qing)的(de)(de)碱金属原料。为了(le)提高安(an)全性(xing)和电压,科学家们发明了(le)使(shi)用石墨和钴酸(suan)锂来储存(cun)锂原子(zi)(zi)(zi)。这(zhei)些数(shu)(shu)据(ju)的(de)(de)分(fen)子(zi)(zi)(zi)结构形成了(le)纳米级的(de)(de)精(jing)细(xi)存(cun)储网(wang)格(ge),可用于存(cun)储锂原子(zi)(zi)(zi)。这(zhei)样(yang),即使(shi)电池(chi)外壳(qiao)破裂,氧气(qi)进入,它(ta)也会太大,因(yin)为氧气(qi)分(fen)子(zi)(zi)(zi)无法进入这(zhei)些细(xi)微(wei)的(de)(de)存(cun)储隔(ge)间,这(zhei)样(yang)锂原子(zi)(zi)(zi)就不(bu)会接触到氧气(qi),从而避免爆炸(zha)。

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蓄电(dian)池采取的保护措施


锂电池芯充(chong)(chong)(chong)电到4.2V的(de)(de)电压(ya)后,就会(hui)(hui)开始产生副作用。电压(ya)越高(gao)(gao),风险(xian)就越高(gao)(gao)。在锂电池的(de)(de)电压(ya)高(gao)(gao)于(yu)4.2V之后,正(zheng)极(ji)数据中的(de)(de)锂原子数小(xiao)于(yu)一半。此时,存储(chu)晶(jing)格(ge)往往会(hui)(hui)掉落,导(dao)致电池容量永久下(xia)降。如果继(ji)续充(chong)(chong)(chong)电,由于(yu)负极(ji)存储(chu)晶(jing)格(ge)中已经充(chong)(chong)(chong)满(man)了锂原子,后续的(de)(de)锂金属会(hui)(hui)堆积在负极(ji)材(cai)料的(de)(de)表面。这些锂原子从负表面的(de)(de)方向生长(zhang)到锂离子。这些锂金属晶(jing)体(ti)会(hui)(hui)穿(chuan)过(guo)隔膜纸,使(shi)正(zheng)极(ji)和负极(ji)短路。


因(yin)此,当(dang)锂(li)电(dian)(dian)池充电(dian)(dian)时,电(dian)(dian)压限(xian)(xian)制必须(xu)同(tong)时考虑电(dian)(dian)池的寿命、容量(liang)和安(an)全性。理想的充电(dian)(dian)电(dian)(dian)压限(xian)(xian)制是4.2V。锂(li)电(dian)(dian)池放电(dian)(dian)时必须(xu)有一(yi)个下限(xian)(xian)。当(dang)电(dian)(dian)池电(dian)(dian)压低(di)于2.4V时,一(yi)些数据开始被破坏(huai)。



6.UPS主机和(he)电池相互独立,以便于(yu)容量;


7.机(ji)柜供应部(bu)分空(kong)间足够(gou),不需要另一个机(ji)架。


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