Journal of Power Sources ( IF 8.1 ) Pub Date : 2014-03-16 , DOI: 10.1016/j.jpowsour.2014.03.021 Xinxin Jiang , Kaiqiang Wu , Lianyi Shao , Miao Shui , Xiaoting Lin , Mengmeng Lao , Nengbing Long , Yuanlong Ren , Jie Shu
Copper nitrate hydrate (Cu(NO3)2·2.5H2O) exhibits superior high lithium storage capacity (2285 mAh g−1) as anode material for lithium-ion batteries. The structural transformation and lithium storage mechanism of Cu(NO3)2·2.5H2O are thoroughly studied by various advanced analytical techniques. It is found that the lithium storage process of Cu(NO3)2·2.5H2O is associated with a quasi-reversible electrochemical conversion reaction. During the discharge process, the electrochemical reaction of Cu(NO3)2·2.5H2O with lithium results in the formation of Cu, LiNO3, Li3N, Li2O and H2O. In the reverse charge process, Cu(NO3)2 can be generated by a conversion reaction. As a result, Cu(NO3)2·2.5H2O shows the reversible charge capacities of 1632.1 mAh g−1 in 0.0–3.4 V and 689.1 mAh g−1 in 1.0–3.4 V, respectively.
中文翻译：
优质高容量硝酸铜水合物负极材料中的锂存储机理
水合硝酸铜（Cu（NO 3）2 ·2.5H 2 O ）作为锂离子电池的负极材料具有优异的高锂存储容量（2285 mAh g -1）。通过各种先进的分析技术，对Cu（NO 3）2 ·2.5H 2 O的结构转变和储锂机理进行了深入研究。发现Cu（NO 3）2 ·2.5H 2 O的锂存储过程与准可逆的电化学转化反应有关。在放电过程中，Cu（NO 3）2 ·2.5H 2的电化学反应与锂导致的Cu，利诺形成ø 3，李3 N，李2氧，氢2 O.在反向充电过程中，铜（NO 3）2可以通过转化反应生成的。其结果是，铜（NO 3）2 ·2.5H 2 ö节目1632.1毫安克可逆的充电容量-1在0.0-3.4 V和689.1毫安克-1分别在1.0-3.4伏。
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