Synthesis and Electrochemical Properties of Monoclinic LiMnBO3 as a Li Intercalation Material

被引:99
作者
Kim, Jae Chul [1 ]
Moore, Charles J. [1 ]
Kang, Byoungwoo [1 ]
Hautier, Geoffroy [1 ]
Jain, Anubhav [1 ]
Ceder, Gerbrand [1 ]
机构
[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
基金
美国国家科学基金会;
关键词
LITHIUM-ION BATTERIES; 1ST PRINCIPLES CALCULATIONS; CATHODE MATERIAL; CRYSTAL-STRUCTURE; AB-INITIO; MN; LIFEPO4; ENERGY; FE; CO;
D O I
10.1149/1.3536532
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We investigated the structural stability and electrochemical properties of LiMnBO3 in the hexagonal and monoclinic form with ab initio computations and, for the first time, report electrochemical data on monoclinic LiMnBO3. In contrast to the negligible Li-storage capacity in the hexagonal LiMnBO3, a second cycle discharge capacity of 100 mAh/g was achieved in the monoclinic LiMnBO3, with good capacity retention over multiple cycles. Elevated temperature cycling indicates that the capacity of monoclinic LiMnBO3 is kinetically limited, and further improvement may be expected by addressing the Li ion and/or electron transport limitations. (C) 2011 The Electrochemical Society. [DOI:10.1149/1.3536532] All rights reserved.
引用
收藏
页码:A309 / A315
页数:7
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