2022-03-14
聚(ju)合物(wu)软(ruan)包锂(li)电(dian)池应用(yong)于(yu)不同(tong)环(huan)境(jing)时(shi)(shi)其(qi)安全使(shi)用(yong)极(ji)其(qi)重要，在众多因素(su)种，温(wen)度对电(dian)池的性能影(ying)响大。当(dang)环(huan)境(jing)温(wen)度降低(di)时(shi)(shi)，电(dian)池内的化学反应也(ye)会(hui)(hui)随着降低(di)，当(dang)电(dian)压(ya)保持(chi)恒(heng)定(ding)时(shi)(shi)，其(qi)放电(dian)电(dian)流也(ye)会(hui)(hui)降低(di)，终导(dao)致(zhi)功(gong)率降低(di)。当(dang)环(huan)境(jing)温(wen)度升(sheng)高时(shi)(shi)，情况(kuang)正好相(xiang)反，电(dian)池功(gong)率上升(sheng)。同(tong)时(shi)(shi)温(wen)度也(ye)会(hui)(hui)影(ying)响电(dian)解液(ye)的转(zhuan)移(yi)速率以(yi)及(ji)电(dian)池的充放电(dian)性能，从而会(hui)(hui)破坏聚(ju)合物(wu)软(ruan)包锂(li)电(dian)池内的化学平衡。
聚合物软包锂(li)电(dian)(dian)池(chi)的(de)储存温(wen)度(du)一(yi)般为常(chang)温(wen)25±5℃。温(wen)度(du)影(ying)响锂(li)离子的(de)活性。温(wen)度(du)越(yue)高，活性越(yue)高，但(dan)温(wen)度(du)超过(guo)60℃时，极大(da)可能对电(dian)(dian)池(chi)内的(de)隔膜造(zao)成不可逆的(de)损坏，导致电(dian)(dian)池(chi)损坏。温(wen)度(du)过(guo)低，锂(li)离子活性降(jiang)低，电(dian)(dian)池(chi)容(rong)量无法(fa)释放，导致电(dian)(dian)池(chi)没(mei)电(dian)(dian)，但(dan)当温(wen)度(du)恢复(fu)到(dao)常(chang)温(wen)时，电(dian)(dian)池(chi)容(rong)量则恢复(fu)正常(chang)。
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近(jin)年来新(xin)能(neng)源汽(qi)车的兴起，导致了锂电(dian)(dian)池(chi)技术的快(kuai)速发展，不(bu)仅性(xing)能(neng)更好，价格(ge)也(ye)更低(di)。然(ran)而，许多家(jia)用(yong)汽(qi)车仍然(ran)使(shi)用(yong)重型铅(qian)酸(suan)电(dian)(dian)池(chi)。尽(jin)管(guan)铅(qian)酸(suan)电(dian)(dian)池(chi)不(bu)会延迟(chi)使(shi)用(yong)，但仍落(luo)后于锂电(dian)(dian)池(chi)。为(wei)什么汽(qi)车不(bu)用(yong)锂电(dian)(dian)池(chi)代替铅(qian)酸(suan)电(dian)(dian)池(chi)？事实上，有些汽(qi)车已经(jing)使(shi)用(yong)锂电(dian)(dian)池(chi)作为(wei)启动动力，但它们都(dou)是
2023-02-23
业界根据循环次数来定(ding)义(yi)锂离子电(dian)(dian)池(chi)的使(shi)(shi)用(yong)寿命。但在实践中，用(yong)户使(shi)(shi)用(yong)它(ta)的方式是可(ke)变的，因为不同测试条(tiao)件之(zhi)间没(mei)有可(ke)比性。国标规定(ding)了锂电(dian)(dian)池(chi)循环寿命试验条(tiao)件和要求：在25度(du)室温(wen)下用(yong)恒(heng)流恒(heng)压1C充(chong)电(dian)(dian)系统充(chong)电(dian)(dian)150分钟，用(yong)恒(heng)流1C放(fang)电(dian)(dian)系统放(fang)电(dian)(dian)至(zhi)2.75V截(jie)止(zhi)为一个
2022-07-20
锂(li)电(dian)池(chi)与镍(nie)(nie)氢(qing)(qing)(qing)电(dian)池(chi)相比(bi)哪(na)(na)个更好(hao)，首先要看两者用(yong)于(yu)(yu)哪(na)(na)类(lei)产品，其次要比(bi)较(jiao)两者的(de)(de)(de)经济效(xiao)益，这样才能更好(hao)的(de)(de)(de)知道锂(li)电(dian)池(chi)和镍(nie)(nie)氢(qing)(qing)(qing)金属电(dian)池(chi)哪(na)(na)个好(hao)。一、镍(nie)(nie)氢(qing)(qing)(qing)电(dian)池(chi)的(de)(de)(de)优缺点1、镍(nie)(nie)氢(qing)(qing)(qing)电(dian)池(chi)的(de)(de)(de)优点：（1）能量密(mi)度高，是镍(nie)(nie)镉(ge)的(de)(de)(de)1.5倍；（2）电(dian)压(ya)1.2V-1.3V，相当于(yu)(yu)镍(nie)(nie)镉(ge)电(dian)池(chi)；
2022-06-11
目前(qian)，各种电(dian)储(chu)(chu)(chu)能(neng)(neng)技术大体(ti)可分(fen)为以(yi)下3类(lei):物(wu)理储(chu)(chu)(chu)能(neng)(neng)(如(ru)抽水蓄能(neng)(neng)、压缩(suo)空气储(chu)(chu)(chu)能(neng)(neng)、飞轮储(chu)(chu)(chu)能(neng)(neng)等),电(dian)化(hua)学储(chu)(chu)(chu)能(neng)(neng)(如(ru)锂(li)离子电(dian)池、铅炭电(dian)池、钠硫电(dian)池、全钒液流电(dian)池等)和(he)电(dian)磁储(chu)(chu)(chu)能(neng)(neng)(如(ru)超导电(dian)磁储(chu)(chu)(chu)能(neng)(neng)、超级电(dian)容器等)。今(jin)天简单介(jie)绍基(ji)于非(fei)物(wu)理储(chu)(chu)(chu)能(neng)(neng)的电(dian)储(chu)(chu)(chu)能(neng)(neng)技术。（1）电(dian)化(hua)学储(chu)(chu)(chu)
2022-01-21
从(cong)目前(qian)锂电池(chi)技术的(de)发展来看，大容量软包锂电池(chi)有助于创(chuang)新技术的(de)发展，其具有重(zhong)量轻、寿命长、耐用等特点，在无人机技术的(de)发展中非常重(zhong)要。然(ran)而，它(ta)们(men)也(ye)因(yin)波动(dong)性而闻名，CTIA认证(zheng)计划启动(dong)前(qian)，坏(huai)消(xiao)息意味着消(xiao)费者和(he)消(xiao)费电子制造商(shang)越(yue)来越(yue)质疑它(ta)们(men)的(de)长期可行性。电子设
2022-03-28
一、钴(gu)酸锂电(dian)(dian)池的优点1、优越的电(dian)(dian)化(hua)学性(xing)能(neng)(neng)：每循环平(ping)均容量衰减小于(yu)(yu)0.05%，首(shou)次(ci)(ci)放电(dian)(dian)比容量大于(yu)(yu)135 mAh/g，3.6V首(shou)次(ci)(ci)放电(dian)(dian)的平(ping)台比大于(yu)(yu)85%。2、优良的加工(gong)性(xing)能(neng)(neng)。3、高振实密度有助(zhu)于(yu)(yu)提(ti)高电(dian)(dian)池的比容能(neng)(neng)力。4、产品性(xing)能(neng)(neng)稳定，一致性(xing)好。5、工(gong)作电(dian)(dian)压
2022-11-16
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