鉅大LARGE | 點量(liang):405次(ci) | 2025年(nian)01月份12日
簡述動力鋰離子電池和容量電池的聯系和差別
動力鋰電池即為工具供應動力來源的電源,多指為電動汽車、電動列車、電動自行車、高爾夫球車供應動力的蓄電池。其重要差別于用于汽車發動機起動的起動電池。多采用閥口密封式鉛酸蓄電池、敞口式管式鉛酸蓄電池以及磷酸鐵鋰蓄電池。
蓄電池是作為動力鋰電池中的(de)(de)(de)一(yi)種,它(ta)的(de)(de)(de)用途是(shi)能(neng)把(ba)有限的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)儲存起來,在(zai)合適的(de)(de)(de)地方使(shi)用。它(ta)的(de)(de)(de)工作原理就(jiu)是(shi)把(ba)化(hua)(hua)學能(neng)轉(zhuan)化(hua)(hua)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)。它(ta)用填滿海綿狀鉛(qian)(qian)的(de)(de)(de)鉛(qian)(qian)板作負極,填滿二(er)氧(yang)(yang)化(hua)(hua)鉛(qian)(qian)的(de)(de)(de)鉛(qian)(qian)板作正極,并(bing)用22~28%的(de)(de)(de)稀硫(liu)(liu)酸作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解質。在(zai)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)轉(zhuan)化(hua)(hua)為(wei)化(hua)(hua)學能(neng),放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)化(hua)(hua)學能(neng)又轉(zhuan)化(hua)(hua)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)在(zai)放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi),金屬(shu)鉛(qian)(qian)是(shi)負極,發(fa)生(sheng)(sheng)氧(yang)(yang)化(hua)(hua)反應,被氧(yang)(yang)化(hua)(hua)為(wei)硫(liu)(liu)酸鉛(qian)(qian);二(er)氧(yang)(yang)化(hua)(hua)鉛(qian)(qian)是(shi)正極,發(fa)生(sheng)(sheng)還(huan)原反應,被還(huan)原為(wei)硫(liu)(liu)酸鉛(qian)(qian)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)在(zai)用直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi),兩(liang)極分(fen)別生(sheng)(sheng)成(cheng)鉛(qian)(qian)和二(er)氧(yang)(yang)化(hua)(hua)鉛(qian)(qian)。移去電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源后,它(ta)又恢復(fu)到放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)前的(de)(de)(de)狀態,組成(cheng)化(hua)(hua)學電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)。蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)是(shi)能(neng)反復(fu)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)、放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi),叫(jiao)做二(er)次電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)。它(ta)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓是(shi)2V,通常(chang)把(ba)三個蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)串聯起來使(shi)用,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓是(shi)6V。汽車(che)上(shang)用的(de)(de)(de)是(shi)6個蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)串聯成(cheng)12V的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組。
鋰離子電池是一類由鋰(li)金(jin)(jin)屬或鋰(li)合金(jin)(jin)為負極材(cai)料(liao)、使用非水電(dian)(dian)解(jie)質(zhi)溶(rong)液的(de)(de)(de)電(dian)(dian)池(chi)。由于鋰(li)金(jin)(jin)屬的(de)(de)(de)化(hua)學特(te)性非常(chang)活潑,使得鋰(li)金(jin)(jin)屬的(de)(de)(de)加工、保存、使用,對環境要(yao)求(qiu)(qiu)非常(chang)高(gao)。所(suo)以,鋰(li)離(li)子電(dian)(dian)池(chi)長期沒有得到(dao)應用。隨著二十世紀(ji)微電(dian)(dian)子技(ji)術的(de)(de)(de)發展,小型化(hua)的(de)(de)(de)設備日益增多,對電(dian)(dian)源提出了很(hen)高(gao)的(de)(de)(de)要(yao)求(qiu)(qiu)。鋰(li)離(li)子電(dian)(dian)池(chi)隨之(zhi)進入(ru)了大規模的(de)(de)(de)實用階段。
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