格瑞普電池作為專業的鋰電池廠家，研發制造鋰(li)電池(chi)多年，這里肯定(ding)的(de)告訴大(da)家：手機(ji)充(chong)電器充(chong)電功(gong)率(lv)是不(bu)可能到(dao)500W的(de)。

具體(ti)原因，下面給大家做簡單的(de)解(jie)答(da)：

1、首先手機電池能承受的充電電壓是有限的

我們目前或未來很長一段時間(jian)里，手機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)使用(yong)的(de)(de)都會(hui)是聚合物三元鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)標稱放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，即使是近來推出(chu)的(de)(de)高(gao)壓(ya)鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯，放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)平臺也(ye)只是3.85V，已經(jing)是屬于目前鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)市場上(shang)能量密(mi)度最高(gao)的(de)(de)一類(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)了，而且電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極端能承受的(de)(de)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)也(ye)就5V左右(you)，這個是由該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)本身的(de)(de)化(hua)學性質和手機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子元器件(jian)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)性質共(gong)同決定的(de)(de)；很顯然，充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器輸出(chu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)大小將會(hui)被限制在(zai)5V大小左右(you)。

2、然后根據功率公(gong)式：P=UI

就按照問題中的(de)功(gong)率(lv)500W，P=500W，而電(dian)(dian)壓(ya)U=5V，那么(me)需要(yao)的(de)電(dian)(dian)流(liu)大(da)(da)小I=100A，這個充電(dian)(dian)電(dian)(dian)流(liu)對于手(shou)機(ji)電(dian)(dian)池來說是非常大(da)(da)的(de)，大(da)(da)概率(lv)情況下(xia)，手(shou)機(ji)電(dian)(dian)池是無法長時間承受(shou)這樣大(da)(da)的(de)充電(dian)(dian)電(dian)(dian)流(liu)的(de)。

3、之(zhi)后我們再來(lai)看(kan)看(kan)目前手機電池的基本性能情況：

手(shou)機電(dian)(dian)(dian)池(chi)(chi)(chi)容量大(da)小普遍在3800mAh到6000mAh，大(da)多數是(shi)4000mAh或是(shi)3800mAh的(de)(de)(de)(de)。如果按照(zhao)電(dian)(dian)(dian)池(chi)(chi)(chi)行業里(li)面的(de)(de)(de)(de)充放(fang)電(dian)(dian)(dian)倍(bei)率來解答的(de)(de)(de)(de)話，手(shou)機電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)充放(fang)電(dian)(dian)(dian)倍(bei)率1C的(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)大(da)小就(jiu)(jiu)是(shi)4A，100A除以4A就(jiu)(jiu)等于25C，也就(jiu)(jiu)是(shi)說電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)充電(dian)(dian)(dian)倍(bei)率要達到25C，這(zhe)個(ge)充電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)倍(bei)率是(shi)非常(chang)大(da)的(de)(de)(de)(de)，就(jiu)(jiu)目(mu)前而言，還沒有哪個(ge)鋰電(dian)(dian)(dian)池(chi)(chi)(chi)廠家可(ke)以實現那么(me)大(da)倍(bei)率充電(dian)(dian)(dian)性能(neng)的(de)(de)(de)(de)電(dian)(dian)(dian)池(chi)(chi)(chi)。

4、最后了解(jie)鋰電(dian)池充放電(dian)電(dian)流倍率(lv)大(da)小與(yu)電(dian)池能量密度的關系(xi)

鋰電池(chi)充(chong)(chong)放(fang)電電流(liu)(liu)的倍率越(yue)大，單位體(ti)積能量密度(du)就(jiu)會越(yue)小，這(zhe)個(ge)是經過實際生(sheng)產驗證得出來的基本結論。因為充(chong)(chong)放(fang)電電流(liu)(liu)越(yue)大，要求(qiu)內阻(zu)就(jiu)越(yue)小，疊片壓實密度(du)就(jiu)越(yue)小，這(zhe)樣才能更好(hao)的實現電流(liu)(liu)的導線性能，降低電池(chi)發熱程度(du)。

很顯(xian)然，手機(ji)電池最求(qiu)的(de)是在有限的(de)空間體積下，更加(jia)最求(qiu)的(de)是容量越大(da)越好（單位體積能量密度(du)越大(da)越好），這(zhe)個與上面(mian)提(ti)到(dao)的(de)剛好相反。

況(kuang)且如(ru)果手機電(dian)(dian)池(chi)在既定(ding)的內(nei)阻(zu)大小(xiao)(xiao)（而(er)內(nei)阻(zu)會隨著電(dian)(dian)池(chi)老化(hua)而(er)增大）和電(dian)(dian)壓大小(xiao)(xiao)下(xia)，盲目加大充電(dian)(dian)電(dian)(dian)流，更容易使(shi)得電(dian)(dian)池(chi)發熱或(huo)發熱失控，導致電(dian)(dian)池(chi)發生鼓包、自(zi)燃爆炸(zha)等事故。

總之手機充電器能(neng)(neng)充電(dian)(dian)(dian)的(de)(de)(de)最大(da)功(gong)率(lv)是取決于手(shou)機(ji)電(dian)(dian)(dian)池所能(neng)(neng)承受(shou)(shou)的(de)(de)(de)最大(da)充電(dian)(dian)(dian)功(gong)率(lv)，所以說手(shou)機(ji)充電(dian)(dian)(dian)器發(fa)展到500w的(de)(de)(de)可能(neng)(neng)性不高（基本(ben)不可能(neng)(neng)），除非新型(xing)種類電(dian)(dian)(dian)池被發(fa)明出來(lai)，而且該電(dian)(dian)(dian)池能(neng)(neng)承受(shou)(shou)相應(ying)(ying)功(gong)率(lv)大(da)小(xiao)的(de)(de)(de)充電(dian)(dian)(dian)需(xu)求和符(fu)合(he)手(shou)機(ji)實際應(ying)(ying)用的(de)(de)(de)各種條件需(xu)求，如能(neng)(neng)力密度要大(da)、重量要輕(qing)、使用壽命要長等(deng)。