【摘要】：富鋰錳基正極材料x(chóng) Li_2MnO_3·(1-x)LiMO)2(M=Ni,Co或Mn)具有高比容量、低成本等優(yōu)點(diǎn),是下一代高比能鋰離子電池正極材料有力競(jìng)爭(zhēng)者。然而該材料也存在首次不可逆容量大,大功率下循環(huán)性能差等缺點(diǎn)。從富鋰錳基正極材料的首次充放電容量、循環(huán)性能、倍率性能、阻抗分析等方面,重點(diǎn)討論了包覆、摻雜、混合等改性方法對(duì)x Li_2MnO_3·(1-x)LiMO_2的電化學(xué)性能影響,指出了富鋰錳基正極材料當(dāng)前存在爭(zhēng)議的問(wèn)題,并展望了今后的改性研究工作。
[Abstract]:Lithium-rich manganese based cathode material x Li_2MnO_3 (1-x) LiMO) 2 (MN NiCo or Mn) has the advantages of high specific capacity and low cost, and is a strong competitor for the next generation of high specific energy lithium ion battery cathode materials. However, the material also has the shortcomings of large irreversible capacity for the first time and poor cycling performance under high power. The first charge and discharge capacity, cycle performance, rate performance, impedance analysis of lithium-rich manganese-rich cathode materials are discussed in detail. The effects of mixed modification methods on the electrochemical properties of x Li_2MnO_3 _ (1-x) LiMO_2 were discussed. The current controversial problems of lithium-rich manganese based cathode materials were pointed out, and the research work of modification in the future was prospected.
【作者單位】： 南京航空航天大學(xué)機(jī)械結(jié)構(gòu)力學(xué)及控制國(guó)家重點(diǎn)實(shí)驗(yàn)室;上海空間電源研究所;
【基金】：江蘇省科技成果轉(zhuǎn)化項(xiàng)目(BA2013142) 航天SAST基金(2013-YF-2059) 江蘇省自然科學(xué)基金(BK20130800) 中央高�；究蒲袠I(yè)務(wù)費(fèi)(NS2014054) 江蘇高校優(yōu)勢(shì)學(xué)科建設(shè)工程資助項(xiàng)目
【分類(lèi)號(hào)】：TM912

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