人們常將(jiang)鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)稱(cheng)為鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi),實際(ji)上(shang),這兩(liang)者嚴格上(shang)來(lai)(lai)說是(shi)不同的。鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)是(shi)以(yi)金(jin)屬鋰(li)做負極活性物質(zhi)的電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)總稱(cheng),它一般(ban)指的是(shi)一次(ci)鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi),不可進行循環充電(dian)(dian)(dian)(dian)(dian),且易產生枝晶引起爆(bao)炸,因此很少(shao)應用(yong)于(yu)日(ri)常電(dian)(dian)(dian)(dian)(dian)子(zi)產品(pin)。但隨著(zhu)鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)運(yun)用(yong)越來(lai)(lai)越廣泛,鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的概念不斷被模糊(hu),因此人們便將(jiang)鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)稱(cheng)為鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)。接(jie)下來(lai)(lai)就和小編一起來(lai)(lai)看看鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的百科(ke)吧(ba)。
隨(sui)著科(ke)學技術的發(fa)展,現在(zai)鋰(li)(li)(li)(li)電(dian)(dian)池(chi)(chi)(chi)(chi)類(lei)產品已經成(cheng)(cheng)為(wei)了(le)主流(liu)。鋰(li)(li)(li)(li)電(dian)(dian)池(chi)(chi)(chi)(chi)是一類(lei)由鋰(li)(li)(li)(li)金(jin)屬或鋰(li)(li)(li)(li)合金(jin)為(wei)負極(ji)材,使用非水電(dian)(dian)解質溶液制作(zuo)而成(cheng)(cheng)的電(dian)(dian)池(chi)(chi)(chi)(chi),大(da)致可分為(wei)鋰(li)(li)(li)(li)金(jin)屬電(dian)(dian)池(chi)(chi)(chi)(chi)和鋰(li)(li)(li)(li)離(li)子(zi)(zi)電(dian)(dian)池(chi)(chi)(chi)(chi)這(zhe)兩種(zhong)類(lei)別(bie)。在(zai)文獻和現實(shi)生活中,鋰(li)(li)(li)(li)電(dian)(dian)池(chi)(chi)(chi)(chi)和鋰(li)(li)(li)(li)離(li)子(zi)(zi)電(dian)(dian)池(chi)(chi)(chi)(chi)是互相區別(bie)而又(you)有繼承和發(fa)展關系的一對(dui)概念,而隨(sui)著鋰(li)(li)(li)(li)離(li)子(zi)(zi)電(dian)(dian)池(chi)(chi)(chi)(chi)的運用越來越廣(guang)泛,人們便普遍將鋰(li)(li)(li)(li)離(li)子(zi)(zi)電(dian)(dian)池(chi)(chi)(chi)(chi)稱為(wei)鋰(li)(li)(li)(li)電(dian)(dian)池(chi)(chi)(chi)(chi)。
鋰(li)(li)金屬電池(chi)(chi)(chi)最早(zao)于1912年出并研究,也(ye)可(ke)稱為鋰(li)(li)原(yuan)電池(chi)(chi)(chi),它是一種一次性電池(chi)(chi)(chi),主要有鋰(li)(li)錳,鋰(li)(li)鐵(tie)電池(chi)(chi)(chi)等等。鋰(li)(li)金屬電池(chi)(chi)(chi)可(ke)以連續放電,也(ye)可(ke)以間歇放電,一旦電能(neng)耗(hao)盡便(bian)不能(neng)再用(yong),不可(ke)充電,充電極容易(yi)引起爆炸。
鋰(li)離子(zi)電(dian)(dian)池(chi)(chi)(chi)是指以兩種不同(tong)的,能夠可(ke)逆的,嵌入和(he)(he)脫嵌鋰(li)離子(zi)的嵌鋰(li)化合(he)物(wu)分別作為電(dian)(dian)池(chi)(chi)(chi)正(zheng)極(ji)和(he)(he)負極(ji)的二(er)次電(dian)(dian)池(chi)(chi)(chi)體系,鋰(li)離子(zi)電(dian)(dian)池(chi)(chi)(chi)可(ke)循環充電(dian)(dian)。鋰(li)電(dian)(dian)池(chi)(chi)(chi)和(he)(he)鋰(li)離子(zi)電(dian)(dian)池(chi)(chi)(chi)的相(xiang)同(tong)點是在正(zheng)極(ji)和(he)(he)電(dian)(dian)解(jie)質(zhi)上,兩種電(dian)(dian)池(chi)(chi)(chi)都采(cai)用(yong)金屬氧化物(wu)和(he)(he)硫化物(wu)作為正(zheng)極(ji),而(er)以有機(ji)溶劑或無機(ji)鹽體系作為電(dian)(dian)解(jie)質(zhi)。
一、新電池充電
新電(dian)(dian)池一(yi)般要激活(huo)(huo),電(dian)(dian)池放(fang)(fang)置(zhi)一(yi)段時(shi)(shi)間后(hou),會進入休眠狀態(tai),此時(shi)(shi)容(rong)量低于正(zheng)常(chang)值(zhi),使用時(shi)(shi)間亦隨之縮短,因此需要激活(huo)(huo)。鋰電(dian)(dian)池激活(huo)(huo)方法非常(chang)簡(jian)單,只要經過(guo)3—5次(ci)正(zheng)常(chang)的(de)充放(fang)(fang)電(dian)(dian)循環就(jiu)可激活(huo)(huo)電(dian)(dian)池,恢復正(zheng)常(chang)容(rong)量。
二(er)、舊(jiu)電(dian)池充(chong)電(dian)
1、充電方法
舊電(dian)池(chi)是(shi)指(zhi)已經充(chong)(chong)(chong)放電(dian)多次的(de)電(dian)池(chi),而(er)不(bu)是(shi)報廢的(de)電(dian)池(chi)。鋰電(dian)池(chi)的(de)壽命與充(chong)(chong)(chong)放電(dian)的(de)次數無關(guan),它(ta)沒(mei)有記(ji)憶效應,不(bu)論(lun)你(ni)怎么充(chong)(chong)(chong)電(dian),都(dou)不(bu)會影響充(chong)(chong)(chong)電(dian)循環次數。因此不(bu)要(yao)把電(dian)池(chi)用到完全沒(mei)電(dian)才去充(chong)(chong)(chong)電(dian),最(zui)好是(shi)當你(ni)能充(chong)(chong)(chong)電(dian)時(shi),就盡量(liang)把電(dian)池(chi)充(chong)(chong)(chong)飽,充(chong)(chong)(chong)電(dian)時(shi)間以2-3小(xiao)時(shi)以內為宜,當然你(ni)也不(bu)一定非要(yao)充(chong)(chong)(chong)滿。
2、充電電壓
鋰電(dian)池安全(quan)(quan)工作電(dian)壓范(fan)圍是2.8到(dao)4.2V,低于(yu)或(huo)高于(yu)這個電(dian)壓范(fan)圍,電(dian)池中的鋰離子變(bian)得非常不穩定,甚至造成(cheng)事故(gu)。為保(bao)證電(dian)池處于(yu)安全(quan)(quan)范(fan)圍,因此需(xu)要專門的充電(dian)器。這些充電(dian)器會(hui)自(zi)動根(gen)據(ju)電(dian)池當(dang)前狀(zhuang)態(tai)而(er)調整充電(dian)方式。
3、充電工具
鋰電(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)要(yao)用專(zhuan)用的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi),它可以(yi)保障(zhang)充(chong)(chong)電(dian)(dian)(dian)(dian)的(de)安全(quan)性。充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)工作(zuo)時(shi),以(yi)恒定的(de)電(dian)(dian)(dian)(dian)流給電(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian),隨(sui)著電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)壓(ya)的(de)升高,充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)同時(shi)提高充(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya),以(yi)加快充(chong)(chong)電(dian)(dian)(dian)(dian)速(su)度。當(dang)電(dian)(dian)(dian)(dian)池到達4.2V截止電(dian)(dian)(dian)(dian)壓(ya)時(shi)候(hou),此(ci)時(shi)電(dian)(dian)(dian)(dian)池大約僅沖(chong)入70%左右的(de)電(dian)(dian)(dian)(dian)量(并未飽滿(man))。此(ci)時(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)即以(yi)恒定的(de)電(dian)(dian)(dian)(dian)壓(ya),逐漸(jian)變(bian)小的(de)電(dian)(dian)(dian)(dian)流對電(dian)(dian)(dian)(dian)池繼(ji)續充(chong)(chong)電(dian)(dian)(dian)(dian),當(dang)值(zhi)至小于0.1A充(chong)(chong)電(dian)(dian)(dian)(dian)仍然檢(jian)測到電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)壓(ya)繼(ji)續升高時(shi)候(hou)才停止充(chong)(chong)電(dian)(dian)(dian)(dian)。
4、定期充電
長期不用的鋰電池,應該以半電狀態,存放在陰涼偏干燥的地方。滿電存放有危險,且電池會有損害,而無電存放,電池可能會被破壞,從而失去作用。在存放過程中,每隔3--6個月,要完成一個充電周期,做一次電量校準。【詳細>>】
鋰(li)(li)電(dian)(dian)(dian)池一(yi)般能(neng)夠(gou)完全充(chong)(chong)放300-500個(ge)充(chong)(chong)電(dian)(dian)(dian)周(zhou)期(qi)(qi),超過這(zhe)個(ge)次(ci)數,電(dian)(dian)(dian)池就(jiu)不能(neng)用(yong)了(le),當然,這(zhe)只能(neng)作為(wei)參考(kao)。鋰(li)(li)電(dian)(dian)(dian)池壽命(ming)和充(chong)(chong)電(dian)(dian)(dian)次(ci)數無關,與充(chong)(chong)放電(dian)(dian)(dian)的(de)(de)周(zhou)期(qi)(qi)有關,也就(jiu)是從(cong)零電(dian)(dian)(dian)量(liang)(liang)充(chong)(chong)到滿(man)電(dian)(dian)(dian)量(liang)(liang)的(de)(de)次(ci)數。一(yi)個(ge)充(chong)(chong)電(dian)(dian)(dian)周(zhou)期(qi)(qi)意味著(zhu)電(dian)(dian)(dian)池的(de)(de)所有電(dian)(dian)(dian)量(liang)(liang)由滿(man)用(yong)到空(kong),再由空(kong)充(chong)(chong)到滿(man)的(de)(de)過程,這(zhe)并不等(deng)同(tong)于充(chong)(chong)一(yi)次(ci)電(dian)(dian)(dian)。比如(ru)說,一(yi)塊鋰(li)(li)電(dian)(dian)(dian)在第一(yi)天只用(yong)了(le)一(yi)半的(de)(de)電(dian)(dian)(dian)量(liang)(liang),然后又為(wei)它充(chong)(chong)滿(man)電(dian)(dian)(dian)。如(ru)果第二天還如(ru)此,即用(yong)一(yi)半就(jiu)充(chong)(chong),總共兩次(ci)充(chong)(chong)電(dian)(dian)(dian)下來,這(zhe)只能(neng)算作一(yi)個(ge)充(chong)(chong)電(dian)(dian)(dian)周(zhou)期(qi)(qi),而不是兩個(ge)。
在日常生活中,通常可能要經過好幾次充電才完成一個周期。每完成一個充電周期,電池容量就會減少一點。不過,這個電量減少幅度非常小,高品質的電池充過多次周期后,仍然會保留原始容量的80%,很多鋰電供電產品在經過兩三年后仍然照常使用。當然,鋰電壽命到了最終后仍是需要更換的。【詳細>>】
鋰電(dian)(dian)池(chi)可(ke)能(neng)會爆(bao)(bao)炸(zha),其(qi)爆(bao)(bao)炸(zha)原因有很多,可(ke)大致歸類(lei)為(wei)外部(bu)短路(lu)、內部(bu)短路(lu)、及過充三種。正常(chang)情況下(xia),鋰電(dian)(dian)池(chi)的(de)兩(liang)極本身(shen)是絕對不會接觸的(de),因此(ci)電(dian)(dian)池(chi)廠商會在兩(liang)極之間放置隔(ge)膜(mo)。
質量(liang)好的(de)隔膜(mo)(mo)紙,在電(dian)池內部溫度(du)較高時,會將細孔關閉,將電(dian)化學反(fan)應終止(zhi),使電(dian)流驟降,溫度(du)也慢慢下(xia)降,從而(er)避免爆(bao)炸(zha)(zha)發生。但如果(guo)在各(ge)種(zhong)因(yin)素的(de)影(ying)響(xiang)下(xia),導致隔膜(mo)(mo)破裂,那么電(dian)池里所(suo)有(you)的(de)能量(liang)都會涌(yong)向電(dian)解液,而(er)電(dian)解液本(ben)身就是一種(zhong)不太(tai)穩(wen)定的(de)化學物質,承受太(tai)多(duo)能量(liang)之(zhi)后,就大量(liang)發熱,乃至起火爆(bao)炸(zha)(zha)。
鋰電池優點
1、鋰電(dian)(dian)池(chi)(chi)電(dian)(dian)壓平臺高,單體電(dian)(dian)池(chi)(chi)的(de)平均電(dian)(dian)壓為(wei)3.7V或3.2V,約(yue)等(deng)于(yu)3只(zhi)鎳鎘電(dian)(dian)池(chi)(chi)或鎳氫電(dian)(dian)池(chi)(chi)的(de)串聯(lian)電(dian)(dian)壓,便(bian)于(yu)組成電(dian)(dian)池(chi)(chi)電(dian)(dian)源組。
2、相對電(dian)(dian)池(chi)而言鋰電(dian)(dian)池(chi)能(neng)量密度高(gao)(gao)。具有(you)高(gao)(gao)儲存能(neng)量密度,目前已達到460-600Wh/kg,是鉛酸電(dian)(dian)池(chi)的約6-7倍。
3、相對鉛酸(suan)電池而言鋰(li)電池重(zhong)量輕,相同(tong)體積下重(zhong)量約為鉛酸(suan)產品的1/5-6。
4、鋰電池(chi)使(shi)用壽命相對較長,使(shi)用壽命可達到(dao)6年以上,磷酸亞鐵鋰為正(zheng)極的電池(chi)用1CDOD充放,有可以使(shi)用1000次(ci)的記錄。
5、具(ju)備高(gao)功率承受力,其中電動汽車(che)用的磷酸亞鐵鋰鋰離(li)子(zi)電池可以(yi)達(da)到(dao)15-30C充放電的能力,便于高(gao)強度的啟動加速。
6、自放(fang)電(dian)率低,無記憶(yi)效應(ying),常(chang)應(ying)用(yong)于日常(chang)電(dian)子產品(pin)供電(dian)。
7、鋰電(dian)池高低溫適應性強,可以(yi)在(zai)-20℃--60℃的環境下使(shi)用,經過工(gong)藝上的處(chu)理,可以(yi)在(zai)-45℃環境下使(shi)用。
8、綠色環保,不論(lun)生(sheng)(sheng)產(chan)、使用和(he)報廢,都不含(han)有、也不產(chan)生(sheng)(sheng)任(ren)何鉛、汞、鎘等有毒有害重金屬元素(su)和(he)物質。
鋰電池(chi)的缺點
1、鋰電池(chi)均(jun)存在安全性差(cha),有發生(sheng)爆炸的危險(xian)。
2、鈷酸(suan)鋰材料的鋰電池(chi)不能大電流放電,安全性(xing)較(jiao)差。
3、鋰(li)電(dian)池(chi)均需保護線路,防止電(dian)池(chi)被過(guo)(guo)充(chong)過(guo)(guo)放(fang)電(dian)。
4、生產要求條件高,成本高。【詳細>>】
1、鋰電池(chi)應(ying)儲存在陰涼(liang)、干(gan)燥、安全的(de)環境,它可儲存在溫度(du)為-5~35℃,相(xiang)對濕度(du)不(bu)大于75%的(de)清潔、干(gan)燥、通風的(de)環境中。注意在較熱的(de)環境中存放電池(chi),會不(bu)可避免的(de)對電池(chi)的(de)質量造成相(xiang)應(ying)的(de)損壞。
2、避免將鋰(li)電(dian)池(chi)靠近熱源、明(ming)火、易燃(ran)易爆氣體(ti)、液體(ti),這樣(yang)可(ke)能(neng)導致(zhi)電(dian)池(chi)泄(xie)露、發熱、冒(mao)煙(yan)、火災以及爆炸。
3、鋰電池(chi)如需長時間儲(chu)存(超過一個月),電池(chi)電量應保持(chi)標(biao)稱容量的30%~50%,儲(chu)存時每月需對電池(chi)進行(xing)補充電1—2小時。
4、電(dian)池應(ying)包(bao)裝成箱進行(xing)運(yun)輸,在運(yun)輸過程(cheng)中應(ying)防(fang)止劇烈振動、撞擊或擠壓(ya),防(fang)止日曬雨淋(lin),可(ke)使用汽(qi)車、火(huo)車、輪船、飛機等交通工(gong)具進行(xing)運(yun)輸。
5、鋰電池(chi)存儲過程中應避(bi)免金屬物體進入(ru)電池(chi)箱,這可能(neng)導致(zhi)電池(chi)產生泄(xie)露、發(fa)熱、冒煙、火災以及爆炸。
6、如果在(zai)高于規(gui)定的(de)操作溫度,即35°C以上的(de)環(huan)境中使用(yong)鋰電(dian)(dian)池(chi),電(dian)(dian)池(chi)的(de)電(dian)(dian)量將(jiang)會(hui)不(bu)斷的(de)減(jian)少。如果在(zai)這樣的(de)溫度下,還要為鋰電(dian)(dian)池(chi)充電(dian)(dian),那對電(dian)(dian)池(chi)的(de)損傷將(jiang)更大。所以,盡量保(bao)持在(zai)適(shi)宜的(de)操作溫度是延長鋰電(dian)(dian)壽(shou)命的(de)好方(fang)法。
7、要(yao)想發揮(hui)鋰離(li)子電池的最大效能,就需要(yao)經常用它,讓鋰電內的電子始(shi)終處于流動狀態。如果不經常使用鋰電池,請一(yi)定記得每月給鋰電完成一(yi)個充(chong)電周期,做一(yi)次(ci)電量校準,即(ji)深(shen)放(fang)深(shen)充(chong)一(yi)次(ci)。
8、淺放淺充對于鋰電更有益處,只有在產品的電源模塊為鋰電做校準時,才有深放深充的必要。所以,使用鋰電供電的產品不必拘泥于過程,一切以方便為先,隨時充電,不必擔心影響壽命。【詳細>>】
1、看外(wai)觀
看外觀是(shi)指看鋰(li)電(dian)池的(de)外觀,做工,大小和工藝。看外殼接縫線寬不寬,是(shi)否有毛刺(ci),有沒有油漬,摸起來手感好(hao)不好(hao),先(xian)進(jin)的(de)工藝都是(shi)手感很舒服的(de),經過(guo)打磨,橡膠油拋光材料既(ji)手感好(hao),同時絕緣(yuan)性能(neng)也很強。
2、看是(shi)否(fou)明確標示容量
無明確標示容(rong)量的(de)鋰電(dian)池(chi)(chi),很可(ke)能(neng)就是(shi)使用(yong)(yong)(yong)劣質(zhi)電(dian)池(chi)(chi)芯(xin)或回收電(dian)池(chi)(chi)芯(xin)重(zhong)新組裝的(de)垃(la)圾電(dian)池(chi)(chi)。市面上充(chong)斥著許多廉價(jia)的(de)鋰電(dian)池(chi)(chi),就是(shi)使用(yong)(yong)(yong)回收電(dian)池(chi)(chi)芯(xin)或拆機電(dian)池(chi)(chi)芯(xin)做的(de),價(jia)格雖然(ran)便宜,但是(shi)壽命短,品(pin)質(zhi)不穩(wen)定(ding),使用(yong)(yong)(yong)不慎(shen)可(ke)能(neng)會(hui)損(sun)壞設備,甚至發生(sheng)爆(bao)炸(zha)。
3、看保(bao)護電(dian)路
鋰(li)電(dian)(dian)池(chi)(chi)的(de)特性決定(ding)了(le)鋰(li)電(dian)(dian)池(chi)(chi)一(yi)定(ding)要外加保護(hu)板(ban),以防(fang)止鋰(li)電(dian)(dian)池(chi)(chi)過(guo)充(chong)、過(guo)放(fang)及短路等(deng)情況(kuang)的(de)發生,不加保護(hu)板(ban)的(de)鋰(li)電(dian)(dian)池(chi)(chi)會(hui)有(you)變形、漏液(ye)、爆炸的(de)危險。在激烈的(de)價格競(jing)爭下,各電(dian)(dian)池(chi)(chi)封(feng)裝(zhuang)(zhuang)廠(chang)尋求更低價位的(de)保護(hu)電(dian)(dian)路,或者根本省略了(le)這個裝(zhuang)(zhuang)置,使得市面上充(chong)斥(chi)著有(you)爆炸危險的(de)鋰(li)電(dian)(dian)池(chi)(chi)。當然(ran),實際上消(xiao)費者無法從(cong)外觀(guan)分辨出來是否有(you)保護(hu)電(dian)(dian)路板(ban),因此(ci)最(zui)好選擇有(you)信(xin)譽的(de)商(shang)家購買。
4、看品牌(pai)
鋰電池的品牌很多,質量卻很難從外觀看出。在這種情況下,大家在選擇之前就要多做點功課,多去網上查詢一下廠商資料。通常來說,專業廠商比小作坊更靠譜,從業時間長的廠商比剛進入該領域的廠商更值得信任。【詳細(xi)>>】