Title:
負極活物質及び蓄電装置
Document Type and Number:
Japanese Patent JP5806271
Kind Code:
B2
Abstract:
A negative-electrode active material includes a mixed power of a first active-material powder composed of a granular graphite particle, and a second active-material powder composed of a plate-shaped graphite particle having a thickness of from 0.3 nm to 100 nm and a major-axis-direction length of from 0.1 μm to 500 μm. Since the plate-shaped graphite particle has a lam liar structure, the plate-shaped graphite particle excels in the strength and flexibility, and function as a negative-electrode active material because lithium ions come in and out between the layers. Therefore, while securing the flexibility of negative-electrode active-material layer, the contradictory event between the capacity and the conductive property is solved.
Inventors:
Yusuke Sugiyama
Masataka Nakanishi
Nobuhiro Goda
Masakazu Murase
Yuji Tanaka
Hirotaka Okamoto
Masataka Nakanishi
Nobuhiro Goda
Masakazu Murase
Yuji Tanaka
Hirotaka Okamoto
Application Number:
JP2013196605A
Publication Date:
November 10, 2015
Filing Date:
September 24, 2013
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Toyota Central R & D Labs.
Toyota Central R & D Labs.
International Classes:
H01M4/587; C01B31/04; H01G11/42; H01G11/50; H01M4/36
Domestic Patent References:
| JP2004227988A | ||||
| JP2012216532A | ||||
| JP2012129167A | ||||
| JP2012129169A | ||||
| JP201222933A | ||||
| JP2014165018A |
Attorney, Agent or Firm:
Patent business corporation Kyoritsu