鋰電池電動車怎么樣
現在市面上,賣的最多的還是鉛酸電池電動車,但(dan)有不(bu)少地(di)區開始引進鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)動(dong)車(che)(che)(che)了。鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)動(dong)車(che)(che)(che)顧名思義,簡單來說(shuo)就是(shi)(shi)把鉛酸換成了鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)而已。那和鉛酸電(dian)(dian)(dian)池(chi)(chi)相比(bi),電(dian)(dian)(dian)動(dong)車(che)(che)(che)鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)好不(bu)好?它真的有企(qi)業(ye),經銷商(shang)說(shuo)的那么傳神么?如今(jin)國家大(da)(da)力提倡節能(neng)、綠色、環保,一說(shuo)到(dao)電(dian)(dian)(dian)動(dong)車(che)(che)(che)鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)好不(bu)好?大(da)(da)家觀點都非常一致,“鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)比(bi)鉛酸電(dian)(dian)(dian)池(chi)(chi)要(yao)輕,壽命也長,但(dan)是(shi)(shi)價格非常貴”,但(dan)是(shi)(shi)到(dao)底好在哪時(shi)?大(da)(da)家又顯得都回答不(bu)上話來。
鋰電池電動車有哪些優缺點
鋰電池電動車優點
1、鋰電池壽命長重量輕體積小
鋰電池電動自行車的動力性能和鉛(qian)酸電池(chi)(簡(jian)易款電動自行車)差(cha)不多,充電6~8小時,根據電池(chi)容量不同可跑30~45公(gong)里,重量只有鉛(qian)酸電池(chi)的1/5左右,鋰電池(chi)電動自行車最(zui)大優點是(shi)壽命長。
聲明(ming):說鋰電(dian)(dian)池(chi)價格貴的只是看到表面,其實仔(zi)細(xi)算(suan)(suan)算(suan)(suan)費用(yong)和鉛(qian)酸(suan)蓄(xu)電(dian)(dian)池(chi)是差不多的,目前一般鋰電(dian)(dian)池(chi)保(bao)2年,鉛(qian)酸(suan)蓄(xu)電(dian)(dian)池(chi)保(bao)1年。
2、鋰電池具有免激活特性
在使用(yong)鋰(li)(li)電(dian)(dian)池(chi)中應注意的(de)(de)(de)是(shi),電(dian)(dian)池(chi)放(fang)置一段時(shi)間后則進入休眠狀(zhuang)態(tai),此時(shi)容(rong)量低(di)于(yu)正常值(zhi),使用(yong)時(shi)間亦隨(sui)之(zhi)縮短(duan)。但鋰(li)(li)電(dian)(dian)池(chi)很容(rong)易(yi)激活(huo)(huo),只要(yao)經過3—5次正常的(de)(de)(de)充放(fang)電(dian)(dian)循(xun)環就可(ke)激活(huo)(huo)電(dian)(dian)池(chi),恢復正常容(rong)量。由于(yu)鋰(li)(li)電(dian)(dian)池(chi)本身的(de)(de)(de)特性,決定了它幾乎沒有記憶效應 。因此用(yong)戶新(xin)鋰(li)(li)電(dian)(dian)池(chi)在激活(huo)(huo)過程中,是(shi)不需(xu)要(yao)特別的(de)(de)(de)方法(fa)和(he)設備的(de)(de)(de)。
3、無記憶效應
消費(fei)(fei)者在給鉛酸蓄電(dian)(dian)池(chi)(chi),鎳電(dian)(dian)池(chi)(chi)充電(dian)(dian)時,一(yi)直(zhi)都擔心電(dian)(dian)池(chi)(chi)發生記(ji)(ji)憶(yi)(yi)效應,等用(yong)了鋰電(dian)(dian)池(chi)(chi),大家都可以松下(xia)一(yi)口(kou)氣,鋰電(dian)(dian)池(chi)(chi)不(bu)帶記(ji)(ji)憶(yi)(yi)效應。要是還有(you)消費(fei)(fei)者不(bu)知道如何(he)給鋰電(dian)(dian)池(chi)(chi)充電(dian)(dian),那不(bu)妨看(kan)看(kan)下(xia)面(mian)的內容(rong)。
鋰電池電動車的缺點
1、鋰電池電動車價格過高皆因鋰電池
目前鋰電池電動自行車的價格(ge)普(pu)遍比鉛酸電池電動(dong)車(che)高出幾百元到(dao)一(yi)千(qian)元,因此在市面上很難得(de)到(dao)消費者顧客的認可。鋰電池輕巧、環保,廢(fei)棄后不會產(chan)生環境(jing)污染,一(yi)旦應用技術成熟,市場銷量(liang)加大,鋰電池電動(dong)自(zi)行車(che)的價格(ge)才(cai)會有所(suo)降下來。
2、鋰電池充電時間過長適得其反
鋰電(dian)(dian)(dian)(dian)池(chi)(chi)或充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器在(zai)電(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)滿后(hou)都會自(zi)動停充(chong)(chong)(chong),并不存在(zai)鎳電(dian)(dian)(dian)(dian)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器所(suo)謂的(de)(de)(de)持續10幾小時的(de)(de)(de)“涓流”充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)。也就是說,如果你的(de)(de)(de)鋰電(dian)(dian)(dian)(dian)池(chi)(chi)在(zai)充(chong)(chong)(chong)滿后(hou),放在(zai)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器上也是白充(chong)(chong)(chong)。而我們誰都無法(fa)保證電(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)充(chong)(chong)(chong)放電(dian)(dian)(dian)(dian)保護電(dian)(dian)(dian)(dian)路的(de)(de)(de)特性永(yong)不變化和質量的(de)(de)(de)萬無一失,所(suo)以(yi)你的(de)(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)將長期處在(zai)危險的(de)(de)(de)邊(bian)緣徘徊。這(zhe)也是我們反對長充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)的(de)(de)(de)另(ling)一個理由。
此外在(zai)某(mou)些(xie)電動車(che)上,充電超過一(yi)定的時(shi)間后(hou),如果不(bu)去取下充電器,這(zhe)時(shi)系統(tong)不(bu)僅不(bu)停止充電,還將開(kai)始放電-充電循環。也許這(zhe)種做(zuo)法的廠商自(zi)有其目的,但顯然對(dui)電池的壽(shou)命而言是不(bu)利的。所以在(zai)購買(mai)鋰(li)電池電動車(che)后(hou),要(yao)咨詢企業或(huo)者經銷(xiao)商,做(zuo)好鋰(li)電池維(wei)護工(gong)作。
3、鋰電池動力性有待提高
鋰(li)電(dian)(dian)池比起鉛酸蓄(xu)電(dian)(dian)池在充(chong)放電(dian)(dian)方面耐波(bo)動的(de)能(neng)力差得多,對于目前大功(gong)率車來說不能(neng)有效采用鋰(li)電(dian)(dian)的(de)一大癥狀也就在此(ci),導致耐用性下降。
4、鋰離子電池安全性問題突出
鋰電池的(de)安全性仍(reng)有待(dai)提高(gao)。鋰(li)電(dian)(dian)池(chi)起火、燃燒甚(shen)至爆炸的(de)隱(yin)患目(mu)前(qian)仍(reng)無法完(wan)全消除。車輛發(fa)(fa)生(sheng)(sheng)碰(peng)撞可能導致(zhi)電(dian)(dian)池(chi)正負極材料沖破隔膜,剎(cha)車時能量快速回充(chong)至電(dian)(dian)池(chi)時瞬(shun)間(jian)的(de)超高(gao)電(dian)(dian)流(liu)等(deng)原因(yin)都會導致(zhi)電(dian)(dian)池(chi)發(fa)(fa)生(sheng)(sheng)短路、溫(wen)度升高(gao),引起燃燒甚(shen)至爆炸。起火的(de)原因(yin)是碰(peng)撞、短路導致(zhi)鋰(li)離(li)子析出,與(yu)空(kong)氣接觸會發(fa)(fa)生(sheng)(sheng)起火、燃燒。另外(wai),鋰(li)離(li)子電(dian)(dian)池(chi)的(de)電(dian)(dian)解液是有機電(dian)(dian)解液,這些物質(zhi)與(yu)空(kong)氣接觸后(hou)更(geng)容易起火燃燒。