Title:
NEGATIVE ELECTRODE FOR ALL-SOLID-STATE SECONDARY BATTERY AND ALL-SOLID-STATE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2018129159
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide: a novel and improved negative electrode for all-solid-state secondary batteries, capable of improving cycle characteristics of an all-solid-state secondary battery using metal lithium as a negative electrode; and an all-solid-state secondary battery.SOLUTION: According to an aspect of the present invention, there is provided a negative electrode for all-solid-state secondary batteries, which includes a negative electrode collector, and a coating layer which coats the negative electrode collector and on which metal lithium can be deposited via a lithium alloy layer that is fast in diffusion of lithium during charging. According to the aspect, metal lithium is substantially uniformly generated and lost on a surface of the coating layer along with charge and discharge, so that dead lithium is hardly occurs. Accordingly, capacity can be maintained even after repeated charging and discharging. More specifically, cycle characteristics can be improved.SELECTED DRAWING: Figure 1
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Inventors:
YAMADA YOSHINOBU
ITO SEITARO
FUJIKI SATOSHI
WATANABE TAKU
AIHARA YUICHI
ITO SEITARO
FUJIKI SATOSHI
WATANABE TAKU
AIHARA YUICHI
Application Number:
JP2017020721A
Publication Date:
August 16, 2018
Filing Date:
February 07, 2017
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD
International Classes:
H01M4/134; H01M4/36; H01M4/38; H01M4/40; H01M4/42; H01M4/66; H01M10/052; H01M10/0562
Domestic Patent References:
| JP2009054484A | 2009-03-12 | |||
| JP2013080669A | 2013-05-02 | |||
| JP2002280073A | 2002-09-27 |
Foreign References:
| WO2015029103A1 | 2015-03-05 |
Attorney, Agent or Firm:
IPD International Patent Business Corporation