LITHIUM COMPOSITE OXIDE AND METHOD FOR PRODUCING THE SAME, POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY INCLUDING THE LITHIUM COMPOSITE OXIDE, POSITIVE ELECTRODE FOR SECONDARY BATTERY INCLUDING THE SAME, AND LITHIUM ION SECONDARY BATTERY USING THE SAME AS POSITIVE ELECTRODE

Title:

Document Type and Number:

Japanese Patent JP2014044897

Kind Code:

A

Abstract:

To provide a lithium composite oxide with which, when the lithium composite oxide is used as a positive electrode active material, a lithium ion secondary battery high in discharge capacity per volume and excellent in cycle characteristics when used in an atmosphere at temperatures higher than room temperature can be obtained.

A hybrid type lithium composite oxide contains, as a main component, a particulate lithium composite oxide comprising a core and a shell covering the core. The core comprises a lithium composite oxide A containing, as a main component, at least one selected from the group consisting of a spinel-type lithium composite oxide, an inverse spinel-type lithium composite oxide, a silicate-type lithium composite oxide, and an olivine-type lithium composite oxide. The shell comprises a lithium composite oxide B containing, as a main component, a layered lithium composite oxide.

Inventors:

MITSUI TOMOHIRO
SHIBUYA KAORU
MIZUNO TAKAYOSHI
NAKAJIMA AKIRA

Application Number:

JP2012187453A

Publication Date:

March 13, 2014

Filing Date:

August 28, 2012

Export Citation:

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Assignee:

JGC CATALYSTS & CHEMICALS LTD

International Classes:

H01M4/505; C01G45/12; C01G53/00; H01M4/36; H01M4/485; H01M4/525; H01M4/58

Attorney, Agent or Firm:

Takahashi politics
Takeshi Ando
Hironari Nakano

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