NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL IN WHICH SAID NEGATIVE ELECTRODE IS USED

Title:

NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL IN WHICH SAID NEGATIVE ELECTRODE IS USED

Document Type and Number:

WIPO Patent Application WO/2016/148185

Kind Code:

A1

Abstract:

Cracking of amorphous carbon-coated graphite is minimized and high-temperature lifespan characteristics are improved by using a secondary-cell negative electrode obtained by press-molding, as a negative electrode active material, a mixture obtained by mixing an amorphous carbon-coated graphite active material A, in which the density after pelletization from application of a pressure of 2 kN/cm2 is 1.50 g/cm3 or lower, and a carbon-based active material B, in which the above density is 1.65 g/cm3 or higher, so that the mass ratio of A:B is 90:10 to 99:1.

Inventors:

TAKAHASHI HIROO (JP)

Application Number:

PCT/JP2016/058310

Publication Date:

September 22, 2016

Filing Date:

March 16, 2016

Export Citation:

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Assignee:

NEC ENERGY DEVICES LTD (JP)

International Classes:

H01M4/133; C01B31/04; H01M4/36; H01M4/587

Foreign References:

JP2010251314A	2010-11-04
JP2015038862A	2015-02-26

Other References: