殷志剛;王靜;郝彥忠;栗靖琦;錢近;

• 1:北京智行鴻遠汽車有限公司
• 2:河北科技大學理學院

摘要(Abstract)：

富鎳三元層狀過渡金屬氧化物正極材料因具有比容量高、價格低廉以及對環境友好等特性而備受關注,但受鋰鎳混排、相變反應、產氣、微裂紋、過渡金屬溶出、表面結構等影響,材料本身存在循環容量衰減等問題。針對正極材料循環容量衰減過快、高溫性能不佳等問題,總結了近年來國內外關于富鎳三元層狀過渡金屬氧化物正極材料的改性方法,包括表面包覆材料合成、元素摻雜材料制備、核殼結構材料開發、濃度梯度材料設計等優化方法,指出高鎳層狀過渡金屬氧化物正極材料的應用需要從不斷完善材料制備方法、改變材料性狀、降低材料成本等方面入手,開發高能量密度的鋰離子電池,使富鎳三元層狀過渡金屬氧化物正極材料在動力電池領域盡早得到廣泛應用。

關鍵詞(KeyWords)： 電化學;富鎳正極;過渡金屬氧化物;改性研究;容量衰減

Abstract:

Keywords:

基金項目(Foundation): 國家自然科學基金(21173065,21603053);; 河北省自然科學基金(B2014208062,B2014208066)

作者(Author): 殷志剛;王靜;郝彥忠;栗靖琦;錢近;

Email:

DOI:

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