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Coated cathode active material for engineered solid-state battery interfaces

A technology of active materials and solid-state batteries, applied in battery electrodes, non-aqueous electrolyte battery electrodes, positive electrodes, etc.

Inactive Publication Date: 2019-04-26
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, most known solid-state Li-ion batteries have significant interface problems, such as degradation and high resistance between the cathode and catholyte

Method used

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  • Coated cathode active material for engineered solid-state battery interfaces
  • Coated cathode active material for engineered solid-state battery interfaces
  • Coated cathode active material for engineered solid-state battery interfaces

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Embodiment Construction

[0022] For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the accompanying drawings and described in the following written specification. It is understood that no limitation as to the scope of the disclosure is thereby intended. It is further understood that the present disclosure includes any alterations and modifications to the illustrated embodiments, and includes additional applications of the principles of the disclosure as would normally occur to one skilled in the art to which the disclosure pertains.

[0023] For the purposes of this disclosure, the phrase "A and / or B" means (A), (B), or (A and B). For the purposes of this disclosure, the phrase "A, B, and / or C" means (A), (B), (C); (A and B); (A and C); (B and C); or (A, B, and C).

[0024] As used with respect to embodiments of the present disclosure, the terms "comprising," "comprising," "having," etc. are synonymous.

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Abstract

A solid-state lithium-ion battery includes an anode, a cathode, and a separator. The cathode includes an active material, a catholyte material, and a barrier layer coating only the active material. The barrier layer is configured to isolate physically the active material from direct contact with the catholyte material and to connect ionically the active material and the catholyte material. The separator is located between the anode and the cathode and is configured to connect ionically the anode and the cathode and to isolate electronically the anode and the cathode.

Description

[0001] This application claims the benefit of priority to US Provisional Application Serial No. 62 / 395,491 filed September 16, 2016, the disclosure of which is incorporated herein by reference in its entirety. technical field [0002] This disclosure relates to the field of lithium-ion batteries, and in particular to solid-state lithium-ion batteries. Background technique [0003] Rechargeable lithium-ion (“Li-ion”) batteries are attractive energy storage for portable electronics as well as electric and hybrid vehicles due to their high specific energy compared to other electrochemical energy storage devices system. A typical lithium-ion battery cell contains a negative electrode, a positive electrode, and a separator region between the negative and positive electrodes. Both electrodes contain active materials which intercalate or react reversibly with lithium. In some cases, the negative electrode can include lithium metal, which can be reversibly dissolved and deposited ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/13H01M4/131H01M4/36H01M4/62H01M4/525H01M4/505H01M10/058H01M10/0525
CPCH01M4/131H01M4/366H01M4/505H01M4/525H01M4/62H01M10/052H01M10/056H01M10/0565H01M2004/028Y02E60/10Y02P70/50H01M10/0525Y02T10/70
Inventor J.F.克里斯琴森B.科青斯基S.黑尔斯特龙
Owner ROBERT BOSCH GMBH
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