Title:
NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SAID NEGATIVE ELECTRODE AND LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2014/162529
Kind Code:
A1
Abstract:
The present invention, which solves the abovementioned problem, is a lithium-ion secondary battery provided with a negative electrode in which carbon is the principal active material. The present invention is characterized by the provision of a negative-electrode active material and a coating material formed on the surface of said negative-electrode active material. The present invention is also characterized in that said coating material comprises a compound containing boron and an alkyl group and is adsorbed onto the surface of the negative-electrode active material. In particular, it is preferable that compound (1) is used as the coating material.
(1)
In compound (1), each X represents a hydrocarbon group; each Y represents hydrogen or a methyl group; part of each hydrocarbon group may be substituted with oxygen, sulfur, nitrogen, or a halogen; X1, X2, X3, Y1, Y2, and Y3 may be different from each other; and each X preferably has a carbon number between 1 and 10, inclusive.
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Inventors:
HARUNA HIROSHI (JP)
MIZUTANI MAKOTO (JP)
ABE TOSHIO (JP)
MIZUTANI MAKOTO (JP)
ABE TOSHIO (JP)
Application Number:
PCT/JP2013/060145
Publication Date:
October 09, 2014
Filing Date:
April 03, 2013
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H01M4/587; H01M4/36; H01M50/406
Foreign References:
| JP2012069352A | 2012-04-05 | |||
| JP2013004215A | 2013-01-07 | |||
| JP2013037772A | 2013-02-21 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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