Synthesis of high capacity cathodes for lithium-ion batteries by morphology-tailored hydroxide co-precipitation

JOURNAL OF POWER SOURCES

卷:274

Article

Wang, Dapeng^1,3  Belharouak, Ilias^1,2  Ortega, Luis H.¹  Zhang, Xiaofeng¹  Xu, Rui¹  Zhou, Dehua¹  Zhou, Guangwen³  Amine, Khalil¹ 

[1] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

[2] Qatar Fdn, Qatar Environm & Energy Res Inst, Doha, Qatar

[3] SUNY Binghamton, Binghamton, NY 13902 USA

关键词: Lithium batteries;    Hydroxide co-precipitation;    Ammonia;    Cathode;    Continuously stirred tank reactor CSTR;   

DOI  :  10.1016/j.jpowsour.2014.10.016

来源: Elsevier

【 摘 要 】

Nickel manganese hydroxide co-precipitation inside a continuous stirred tank reactor was studied with sodium hydroxide and ammonium hydroxide as the precipitation agents. The ammonium hydroxide concentration had an effect on the primary and secondary particle evolution. The two-step precipitation mechanism proposed earlier was experimentally confirmed. In cell tests, Li- and Mn-rich composite cathode materials based on the hydroxide precursors demonstrated good electrochemical performance in terms of cycle life over a wide range of lithium content. (C) 2014 Elsevier B.V. All rights reserved.

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