发明名称 |
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY CATHODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME |
摘要 |
[Problem] To provide a means for realizing improvements in cycle characteristics and for suppressing electrode deterioration resulting from nonuniform voltage across an electrode plane in a high-capacity, large-area non-aqueous electrolyte secondary battery that includes a lithium nickel compound oxide as a cathode active material. [Solution] A non-aqueous electrolyte secondary battery cathode for use in a non-aqueous electrolyte secondary battery, the rated capacity of which is greater than or equal to 3 Ah, and for which the ratio of battery area (the projected area of the battery including the battery casing) to rated capacity is greater than or equal to 5cm2/Ah, the cathode having a cathode collector and a cathode-active-material layer formed on the surface of the cathode collector, the cathode-active-material layer including a cathode active material that includes a lithium nickel compound oxide and a spinel lithium manganese compound oxide. The non-aqueous electrolyte secondary battery cathode satisfies numerical expressions 1 and 2, in which D50(A) is defined as the average secondary particle diameter (D50) [in μm] of the lithium nickel compound oxide, A is defined as the content ratio [in mass percent] of the lithium nickel compound oxide in the cathode active material layer, D50(B) is defined as the secondary particle diameter (D50) [in μm] of the spinel lithium manganese compound oxide, and B is defined as the content ratio [in mass percent] of the spinel lithium manganese compound oxide in the cathode active material layer. |
申请公布号 |
WO2014142283(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
WO2014JP56798 |
申请日期 |
2014.03.13 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
OHARA, KENJI;NITTA, YOSHIAKI;ICHIKAWA, SATORU;KANO, GENTARO;NISHIJIMA, MANABU;SHIMAMURA, OSAMU;KAWAMURA, FUMIHIRO;HAGIYAMA, KOUSUKE;IBUKA, SHIGEO;KASEDA, MANABU;SUENAGA, MASANORI;HIRAI, TAMAKI;TAKAYA, MASAHIRO;NOMOTO, KUNIHARU |
分类号 |
H01M4/131;H01M2/02;H01M2/16;H01M4/36;H01M4/505;H01M4/525;H01M10/0585 |
主分类号 |
H01M4/131 |
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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