发明名称 |
LITHIUM TITANATE PARTICULATE POWDER AND PRODUCTION METHOD FOR SAME, MG-CONTAINING LITHIUM TITANATE PARTICULATE POWDER AND PRODUCTION METHOD FOR SAME, NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICULATE POWDER FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, |
摘要 |
Provided are a lithium titanate particulate powder that displays excellent initial discharge capacity and a high discharge capacity maintenance rate as an active substance for a non-aqueous electrolyte secondary battery as well as having reduced gas emissions, a production method for same, and a Mg-containing lithium titanate powder. The present invention includes: a lithium titanate particulate powder with a spinel structure, wherein, when an index is applied by Fd-3m in XRD, the TiO2 volume by Reitveld analysis is 1.5% or less and the Li2TiO3 volume is 1%-6%, the Li4Ti5O12 volume is 94%-99%, and the BET specific surface area is 7-15m2/g; and a Mg-containing lithium titanate particulate powder with a composition indicated by LixMgyTizO4 (wherein x, z>0, 0.01?y?0.20, 0.01?y/z?0.10, and 0.5?(x+y)/z?1.0), a BET specific surface area of 5-50m2/g, a single-phase spinel type crystal structure, and a lattice constant (a) with a value indicated by 0.050y+8.3595<a?0.080y+8.3595(Å). |
申请公布号 |
WO2012029697(A1) |
申请公布日期 |
2012.03.08 |
申请号 |
WO2011JP69407 |
申请日期 |
2011.08.29 |
申请人 |
TODA KOGYO CORPORATION;YAMAMOTO, AKINORI;OKITA, TOMOKO;YAMAMOTO, HIROSHI;MORI, KOHJI;KOGA, KAZUMICHI;KAJIYAMA, AKIHISA |
发明人 |
YAMAMOTO, AKINORI;OKITA, TOMOKO;YAMAMOTO, HIROSHI;MORI, KOHJI;KOGA, KAZUMICHI;KAJIYAMA, AKIHISA |
分类号 |
C01G23/00;H01M4/36;H01M4/485 |
主分类号 |
C01G23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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