リチウム二次電池用正極活物質、それを用いたリチウム二次電池用正極及びリチウム二次電池

Title:

リチウム二次電池用正極活物質、それを用いたリチウム二次電池用正極及びリチウム二次電池

Document Type and Number:

Japanese Patent JP4333173

Kind Code:

B2

Abstract:

To provide a positive electrode material of a lithium secondary battery capable of suppressing increase of impedance when charging and discharging at high temperature.

The positive electrode activator for a lithium secondary battery is characterized by containing (1) a lithium-containing complex oxide expressed in formula (I): LixNi1-yMyO2-δ, (In the formula, M denotes an element chosen from elements of a 2nd to 14th group of the periodic table excluding Ni; x, y, δ denote the number fulfilling 1.0COPYRIGHT: (C)2005,JPO&NCIPI

Inventors:

Kenji Okahara
Masaru Zaki Tomoko
Akira Utsunomiya
Hiroshi Wada

Application Number:

JP2003079959A

Publication Date:

September 16, 2009

Filing Date:

March 24, 2003

Export Citation:

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Assignee:

Mitsubishi Chemical Corporation

International Classes:

H01M10/05; H01M4/02; H01M4/36; H01M4/38; H01M4/485; H01M4/525

Domestic Patent References:

JP2002270152A
JP2003051308A
JP2002260632A
JP2000021402A

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