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Electrochemical cell and method for the production thereof

An electrochemical and battery technology, applied in the field of electrochemical batteries, can solve the problems of ceramic layer peeling, ceramic layer lack of elasticity, fracture, etc., and achieve the effect of flexible implementation

Active Publication Date: 2016-07-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical stresses that occur here lead to extremely high stresses on the ceramic protective layer, which can lead to embrittlement or mechanical fracture
In addition, spalling of the ceramic layer due to unbalanced pressure loading and lack of elasticity of the ceramic layer may occur

Method used

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  • Electrochemical cell and method for the production thereof
  • Electrochemical cell and method for the production thereof

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Embodiment Construction

[0023] A battery cell 10 according to an embodiment of the invention is schematically shown in FIG. 1 . The battery cell 10 includes a housing 12 in which the electrochemical components of the battery cell 10 are mounted. Particularly preferably, lithium-containing anode 14 and cathode 16 belong to the electrochemical component. If battery cell 10 is embodied, for example, as a lithium-air battery, anode 14 includes metallic lithium, for example in the form of elemental lithium or a lithium alloy.

[0024] In this case, the cathode 16 can be embodied as an air electrode or an oxygen electrode, for example.

[0025] In order to protect the anode 14 , for example against the ingress of ambient constituents which react with the elemental lithium, such as in particular water vapor or oxygen, the anode 14 has, for example, a protective layer 18 . In this case, the anode 14 is preferably covered substantially over its entire surface, at least on its large surface facing the cathod...

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Abstract

Described is an electrochemical cell comprising a lithium-containing anode (14) and a cathode (16). The lithium-containing anode (14) has a protective layer (18) comprising fibers (20) which are made of a material not conducting lithium ions and which are in contact with a material (22) of the protective layer (18) that conducts lithium ions.

Description

technical field [0001] The invention relates to an electrochemical cell according to the preambles of the independent claims, as well as a method for its manufacture and its use. Background technique [0002] In the future, not only in static applications (such as in wind power plants), in mobile applications (such as in hybrid and electric vehicles), but also in the consumer field (such as in laptop computers and mobile phones), in addition to the so-called In addition to lithium-ion batteries, battery systems are also used, the operating principle of which is not based on the insertion of metallic substances in the electrode material, but on the use of metal anodes, for example lithium anodes, in which, for example, an oxygen electrode is provided as a counter electrode. The working principle of this type of battery system is based on the chemical conversion of the anode material and exhibits a very high energy density or high specific energy at the cell level. With respe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/14H01M2/16H01M4/38H01M4/40H01M10/052H01M10/0562H01M12/08H01M4/134H01M4/1395H01M6/18H01M50/403H01M50/414H01M50/434
CPCH01M4/134H01M4/1395H01M4/382H01M4/405H01M10/052H01M10/0562H01M6/185H01M12/08H01M2300/0068H01M2300/0088Y02E60/10H01M50/44H01M50/46H01M50/403H01M50/414H01M50/434
Inventor T·韦尔勒F·埃贝勒B·舒曼C·I·武尔姆V·A·戈德博勒
Owner ROBERT BOSCH GMBH
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