Title:
全固体電池
Document Type and Number:
Japanese Patent JP6973189
Kind Code:
B2
Abstract:
To mainly provide an all-solid battery which uses a Si-based active material as a negative electrode active material, and which can suppress the volume expansion of a negative electrode layer while satisfactorily retaining an energy density of the negative electrode layer during charge.SOLUTION: An all-solid battery is provided according to the disclosure hereof, which comprises a negative electrode current collector, a negative electrode layer, a solid electrolyte layer, a positive electrode layer and a positive electrode current collector which are disposed in this order. The negative electrode layer has an A layer and a B layer from a solid electrolyte layer side in turn. The A layer contains a carbon-based active material. The B layer contains a Si alloy-based active material. Tthe weight ratio (C/Si weight ratio) of the carbon-based active material contained in the A layer to the Si alloy-based active material in the B layer is 0.18 or more and 0.43 or less.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
Hiroko Ohata
Satoshi Mizutani
Satoshi Mizutani
Application Number:
JP2018040719A
Publication Date:
November 24, 2021
Filing Date:
March 07, 2018
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M4/134; H01M4/133; H01M4/38; H01M4/587; H01M10/0562; H01M10/0585
Domestic Patent References:
| JP2015069711A | ||||
| JP2014049229A | ||||
| JP2016225187A | ||||
| JP2008277156A | ||||
| JP2013038073A |
Foreign References:
| US20090061319 |
Attorney, Agent or Firm:
Akihiko Yamashita
Kishimoto Tatsuto
Noriyuki Yamamoto
Kishimoto Tatsuto
Noriyuki Yamamoto
Previous Patent: Migration program, migration method and server that directs migration
Next Patent: Terminal device and notification method
Next Patent: Terminal device and notification method