高倍率電池的(de)(de)(de)(de)(de)(de)(de)壓實(shi)密(mi)度(du)(du)越(yue)大、電(dian)(dian)(dian)(dian)池(chi)(chi)吸(xi)液(ye)(ye)值越(yue)小(xiao)，與電(dian)(dian)(dian)(dian)極內部結構(gou)有直接關系(xi)、電(dian)(dian)(dian)(dian)池(chi)(chi)正負極是由不同(tong)(tong)形(xing)狀(zhuang)和(he)粒(li)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)材料均勻排列在鋁箔(bo)和(he)銅箔(bo)表(biao)面(mian)。壓實(shi)密(mi)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)差異改變了粒(li)子(zi)之(zhi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)距離(li)(li)和(he)間(jian)(jian)隙。壓實(shi)密(mi)度(du)(du)越(yue)大，粒(li)子(zi)之(zhi)間(jian)(jian)接觸越(yue)緊密(mi)，粒(li)子(zi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)距離(li)(li)和(he)間(jian)(jian)隙越(yue)小(xiao)。電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)是液(ye)(ye)態，當注入(ru)足量的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)時、電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)將滲透至粒(li)子(zi)之(zhi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)間(jian)(jian)隙達到飽(bao)和(he)狀(zhuang)態。粒(li)子(zi)之(zhi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)距離(li)(li)和(he)間(jian)(jian)隙越(yue)小(xiao)，與電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)接觸的(de)(de)(de)(de)(de)(de)(de)面(mian)積減(jian)小(xiao)，吸(xi)收電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)的(de)(de)(de)(de)(de)(de)(de)空間(jian)(jian)變小(xiao)，相應吸(xi)收的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)量也會減(jian)小(xiao)，這(zhe)也就是不同(tong)(tong)壓實(shi)密(mi)度(du)(du)影(ying)響電(dian)(dian)(dian)(dian)池(chi)(chi)吸(xi)液(ye)(ye)值的(de)(de)(de)(de)(de)(de)(de)主要(yao)原因。當然不同(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)原材料因粒(li)子(zi)形(xing)貌和(he)結構(gou)粒(li)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)差異也會造成吸(xi)液(ye)(ye)值的(de)(de)(de)(de)(de)(de)(de)不同(tong)(tong)、對(dui)于這(zhe)方面(mian)的(de)(de)(de)(de)(de)(de)(de)影(ying)響還有待進一步研究。

高倍率電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)(de)壓(ya)實(shi)密(mi)度(du)(du)(du)(du)(du)對電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)容量(liang)(liang)及比(bi)(bi)能(neng)量(liang)(liang)的(de)(de)(de)影(ying)響(xiang)，相同容量(liang)(liang)設計，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)質量(liang)(liang)接近；壓(ya)實(shi)密(mi)度(du)(du)(du)(du)(du)不(bu)同，極片(pian)厚(hou)(hou)度(du)(du)(du)(du)(du)存在差異、組裝成電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)厚(hou)(hou)度(du)(du)(du)(du)(du)不(bu)同。不(bu)同壓(ya)實(shi)密(mi)度(du)(du)(du)(du)(du)對電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)厚(hou)(hou)度(du)(du)(du)(du)(du)的(de)(de)(de)影(ying)響(xiang)較大、厚(hou)(hou)度(du)(du)(du)(du)(du)最大差異達(da)0.7mm、達(da)到電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)厚(hou)(hou)度(du)(du)(du)(du)(du)的(de)(de)(de)10%；不(bu)同壓(ya)實(shi)密(mi)度(du)(du)(du)(du)(du)對電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)lC容量(liang)(liang)影(ying)響(xiang)并(bing)不(bu)明(ming)顯；厚(hou)(hou)度(du)(du)(du)(du)(du)的(de)(de)(de)變(bian)化(hua)對電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)體(ti)(ti)積比(bi)(bi)能(neng)量(liang)(liang)具有較大的(de)(de)(de)影(ying)響(xiang)，壓(ya)實(shi)密(mi)度(du)(du)(du)(du)(du)在一定(ding)程度(du)(du)(du)(du)(du)上影(ying)響(xiang)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)(de)體(ti)(ti)積從而改(gai)變(bian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)(de)體(ti)(ti)積比(bi)(bi)能(neng)量(liang)(liang)，從這一角度(du)(du)(du)(du)(du)來(lai)看(kan)提高壓(ya)實(shi)密(mi)度(du)(du)(du)(du)(du)是(shi)提高鋰(li)離子電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)體(ti)(ti)積比(bi)(bi)能(neng)量(liang)(liang)的(de)(de)(de)有效(xiao)方法之(zhi)一。

高倍率電(dian)(dian)池(chi)的(de)(de)壓實(shi)密(mi)(mi)度(du)對(dui)電(dian)(dian)池(chi)內(nei)(nei)(nei)(nei)阻(zu)(zu)的(de)(de)影(ying)(ying)響(xiang)，不同壓實(shi)密(mi)(mi)度(du)對(dui)電(dian)(dian)池(chi)內(nei)(nei)(nei)(nei)阻(zu)(zu)的(de)(de)影(ying)(ying)響(xiang)，壓實(shi)密(mi)(mi)度(du)增大在一(yi)定程度(du)上可降低電(dian)(dian)池(chi)的(de)(de)內(nei)(nei)(nei)(nei)阻(zu)(zu)，正負極這(zhe)種影(ying)(ying)響(xiang)規(gui)律類似。電(dian)(dian)池(chi)內(nei)(nei)(nei)(nei)阻(zu)(zu)的(de)(de)大小(xiao)在一(yi)定程度(du)反應電(dian)(dian)池(chi)內(nei)(nei)(nei)(nei)部(bu)導(dao)電(dian)(dian)性能的(de)(de)差異，在配方和(he)(he)原材料相同的(de)(de)條(tiao)件下，壓實(shi)密(mi)(mi)度(du)增大，原材料粒(li)(li)子(zi)間的(de)(de)距(ju)離(li)減(jian)小(xiao)，接觸(chu)機率越(yue)(yue)大，粒(li)(li)子(zi)間接觸(chu)面(mian)積也越(yue)(yue)大，導(dao)電(dian)(dian)橋梁和(he)(he)通道增多，電(dian)(dian)池(chi)阻(zu)(zu)抗(kang)降低，內(nei)(nei)(nei)(nei)阻(zu)(zu)減(jian)小(xiao)。

高(gao)倍率電(dian)池的壓實密度對電(dian)池高(gao)倍率放電(dian)性能的影響。

壓(ya)(ya)(ya)(ya)實(shi)密(mi)(mi)度過(guo)(guo)大(da)(da)(da)(da)或(huo)過(guo)(guo)小(xiao)(xiao)都會(hui)影響(xiang)高倍率(lv)電(dian)(dian)(dian)(dian)(dian)(dian)池的倍率(lv)放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)能，為了達(da)到理想(xiang)的大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)流放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)能，壓(ya)(ya)(ya)(ya)實(shi)密(mi)(mi)度存在最(zui)佳范圍。壓(ya)(ya)(ya)(ya)實(shi)密(mi)(mi)度過(guo)(guo)大(da)(da)(da)(da)，粒子(zi)(zi)(zi)間(jian)距(ju)(ju)離(li)(li)(li)減小(xiao)(xiao)，接(jie)觸更緊(jin)密(mi)(mi)，電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)增(zeng)強(qiang)，但離(li)(li)(li)子(zi)(zi)(zi)移(yi)動(dong)通(tong)(tong)(tong)道(dao)減小(xiao)(xiao)或(huo)堵塞，不(bu)(bu)利于(yu)大(da)(da)(da)(da)量離(li)(li)(li)子(zi)(zi)(zi)的快(kuai)(kuai)速(su)移(yi)動(dong)從(cong)而(er)限制其(qi)大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)流放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)，放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)過(guo)(guo)程極(ji)化(hua)(hua)增(zeng)大(da)(da)(da)(da)，放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)下降，放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)容量減小(xiao)(xiao)；壓(ya)(ya)(ya)(ya)實(shi)密(mi)(mi)度過(guo)(guo)小(xiao)(xiao)，粒子(zi)(zi)(zi)間(jian)距(ju)(ju)離(li)(li)(li)增(zeng)大(da)(da)(da)(da)，離(li)(li)(li)子(zi)(zi)(zi)通(tong)(tong)(tong)道(dao)增(zeng)多(duo)，電(dian)(dian)(dian)(dian)(dian)(dian)解液吸液量增(zeng)多(duo)，有利于(yu)離(li)(li)(li)子(zi)(zi)(zi)快(kuai)(kuai)速(su)移(yi)動(dong).但因(yin)粒子(zi)(zi)(zi)間(jian)距(ju)(ju)過(guo)(guo)大(da)(da)(da)(da)粒子(zi)(zi)(zi)間(jian)接(jie)觸機率(lv)和接(jie)觸面積減小(xiao)(xiao)，不(bu)(bu)利于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)，導(dao)通(tong)(tong)(tong)性(xing)下降從(cong)而(er)影響(xiang)大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)流放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)，放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)化(hua)(hua)增(zeng)大(da)(da)(da)(da)。所以壓(ya)(ya)(ya)(ya)實(shi)密(mi)(mi)度存在合適范圍即可保證粒子(zi)(zi)(zi)間(jian)充分接(jie)觸又不(bu)(bu)至于(yu)堵塞離(li)(li)(li)子(zi)(zi)(zi)移(yi)動(dong)通(tong)(tong)(tong)道(dao)，同時保證大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)流放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)時電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)良好的導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)和離(li)(li)(li)子(zi)(zi)(zi)的快(kuai)(kuai)速(su)移(yi)動(dong)，減小(xiao)(xiao)放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)化(hua)(hua)，增(zeng)加放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)平臺電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)。

高(gao)倍(bei)(bei)率電池(chi)的壓實密度對(dui)電池(chi)高(gao)倍(bei)(bei)率循環性能(neng)的影(ying)響影(ying)響

電池高倍率(lv)循環性能的因(yin)素很(hen)多(duo)，從不同(tong)壓實密(mi)度對高倍率(lv)循環性能影響(xiang)(xiang)的角度來看，其影響(xiang)(xiang)程度比較明顯。

吸(xi)液值、內阻、高倍率(lv)放電(dian)(dian)性(xing)能(neng)及中值電(dian)(dian)壓的差異(yi)都(dou)會影響鋰(li)離子電(dian)(dian)池的高倍率(lv)循環性(xing)能(neng)，而這些因素(su)又(you)與壓實密度存在一定的相關性(xing)，所以(yi)壓實密度對鋰(li)離子電(dian)(dian)池高倍率(lv)循環性(xing)能(neng)產生了比較(jiao)復雜的影響。