您是否會考慮購買電動車，如果它與傳統內燃機驅動的同類型車一樣昂貴？我打賭很多人都愿意。盡管電動汽車仍然比汽油動力汽車更昂貴，但電池技術的進步在過去幾年降低電動汽車價格方面已經取得了長足的進步。那么如果你把石墨烯電池應(ying)用(yong)在(zai)汽車上那將會是技術的進步。

據麥肯錫公布的Bloomberg New Energy Finance估計，汽車電池組的平均價格已從2010年的每千瓦時1,000美元降至去年每千瓦時230美元左右。你問，這對汽車的價格有多大影響？一個大的影響，以特斯拉Model S為例：美國最受歡迎的電動車電池容(rong)量在75到(dao)100千瓦(wa)(wa)時之間。如果(guo)您(nin)決定(ding)使用100千瓦(wa)(wa)時的(de)車型，那(nei)么(me)該車的(de)電池價(jia)格(ge)現在約為(wei)23,000美元(yuan)，而幾年前則為(wei)100,000美元(yuan)。雖然價(jia)格(ge)不是(shi)阻止人(ren)們轉向電動汽(qi)車的(de)唯(wei)一因素，但如果(guo)它(ta)們不那(nei)么(me)昂貴，它(ta)肯定(ding)會有所幫助。如果(guo)電池價(jia)格(ge)在未來幾年繼續(xu)下降。

在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)領域，當用(yong)(yong)石(shi)墨(mo)(mo)烯(xi)(xi)增強時(shi)，傳統的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)材(cai)(cai)(cai)料（和(he)(he)預期的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)材(cai)(cai)(cai)料）顯著改(gai)善。石(shi)墨(mo)(mo)烯(xi)(xi)可(ke)以(yi)制(zhi)造輕便，耐用(yong)(yong)且(qie)適(shi)合(he)高容(rong)量(liang)(liang)(liang)儲能(neng)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，并(bing)縮短充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)間。它將(jiang)(jiang)延長電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)使(shi)用(yong)(yong)壽命，這與涂(tu)覆在(zai)(zai)材(cai)(cai)(cai)料上或添加到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)中以(yi)實(shi)現(xian)導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)碳量(liang)(liang)(liang)負相(xiang)關，并(bing)且(qie)石(shi)墨(mo)(mo)烯(xi)(xi)增加導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)而不需要(yao)常規(gui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)中使(shi)用(yong)(yong)的(de)碳量(liang)(liang)(liang)。石(shi)墨(mo)(mo)烯(xi)(xi)可(ke)以(yi)以(yi)各種方式(shi)改(gai)善諸如(ru)能(neng)量(liang)(liang)(liang)密度(du)和(he)(he)形成的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)屬性(xing)。通(tong)過將(jiang)(jiang)石(shi)墨(mo)(mo)烯(xi)(xi)引入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)陽極(ji)(ji)(ji)并(bing)利用(yong)(yong)材(cai)(cai)(cai)料的(de)導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)和(he)(he)大(da)(da)的(de)表面積特(te)性(xing)來(lai)實(shi)現(xian)形態優化和(he)(he)性(xing)能(neng)，可(ke)以(yi)增強鋰離子(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)。還發現(xian)，制(zhi)造混(hun)合(he)材(cai)(cai)(cai)料對(dui)于實(shi)現(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)增強也是有(you)用(yong)(yong)的(de)。例如(ru)，氧化釩（VO2）和(he)(he)石(shi)墨(mo)(mo)烯(xi)(xi)的(de)混(hun)合(he)物(wu)可(ke)以(yi)用(yong)(yong)在(zai)(zai)鋰離子(zi)(zi)陰極(ji)(ji)(ji)上，并(bing)且(qie)允許快(kuai)速充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)和(he)(he)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)以(yi)及大(da)(da)的(de)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)循環耐久性(xing)。在(zai)(zai)這種情(qing)況下，VO2提供高能(neng)量(liang)(liang)(liang)但導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)差(cha)，這可(ke)以(yi)通(tong)過使(shi)用(yong)(yong)石(shi)墨(mo)(mo)烯(xi)(xi)作為一(yi)種結構“骨架”來(lai)解決，在(zai)(zai)其(qi)上連接VO2 – 產生具(ju)有(you)提高的(de)容(rong)量(liang)(liang)(liang)和(he)(he)優異的(de)導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)混(hun)合(he)材(cai)(cai)(cai)料。另(ling)一(yi)個例子(zi)(zi)是LFP（磷酸鐵鋰）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，這是一(yi)種可(ke)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)鋰離子(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)。它具(ju)有(you)比(bi)其(qi)他鋰離子(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)更低的(de)能(neng)量(liang)(liang)(liang)密度(du)，但具(ju)有(you)更高的(de)功率密度(du)（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)提供能(neng)量(liang)(liang)(liang)的(de)速率的(de)指(zhi)示）。使(shi)用(yong)(yong)石(shi)墨(mo)(mo)烯(xi)(xi)增強LFP陰極(ji)(ji)(ji)使(shi)得電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)重量(liang)(liang)(liang)輕，充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)速度(du)比(bi)鋰離子(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)快(kuai)，并(bing)且(qie)比(bi)傳統LFP電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)具(ju)有(you)更大(da)(da)的(de)容(rong)量(liang)(liang)(liang)。

石墨烯價格昂貴，成本較高，所以在制造石墨烯電池時，以目前的(de)工藝和(he)技(ji)術(shu)暫時是無法降(jiang)低石墨烯(xi)電池價格(ge)的(de)。