Title:
NEGATIVE-ELECTRODE MATERIAL FOR LITHIUM-ION BATTERY, LITHIUM-ION BATTERY, AND METHOD FOR MANUFACTURING NEGATIVE-ELECTRODE MATERIAL FOR LITHIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/149731
Kind Code:
A1
Abstract:
A negative-electrode material 100 for one lithium-ion battery according to the present invention is silicon fine particles 201 having a volume distribution in which the modal diameter and the median diameter are not more than 50 nm, or alternatively, an aggregate or collection of the silicon fine particles 201. Some of the silicon fine particles 201 that are folded in the shape of multilayered petals or ramenta or a part of the aggregate or collection of the silicon fine particles 201 are in contact with, or are embedded in, a carbon base material 101. A lithium-ion battery having superior charge/discharge cycle characteristics can be achieved by employing this negative-electrode material 100.
Inventors:
OKAI MAKOTO (JP)
HIGO TORU (JP)
HIGO TORU (JP)
Application Number:
PCT/JP2016/056638
Publication Date:
September 08, 2017
Filing Date:
March 03, 2016
Export Citation:
Assignee:
HITACHI LTD (JP)
NISSHIN KASEI CO LTD (JP)
NISSHIN KASEI CO LTD (JP)
International Classes:
H01M4/134; H01M4/133; H01M4/1393; H01M4/1395
Foreign References:
| JP2015220221A | 2015-12-07 | |||
| JP2015219989A | 2015-12-07 | |||
| JP2015060640A | 2015-03-30 | |||
| JP2005310759A | 2005-11-04 | |||
| JP2009535776A | 2009-10-01 | |||
| JP2014060124A | 2014-04-03 |
Attorney, Agent or Firm:
KOUNO, Hiroaki (JP)
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