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Battery and membrane electrode assembly

A membrane electrode assembly and battery technology, applied in battery electrodes, fuel cells, circuits, etc., can solve problems such as cracks and pinholes, and achieve high durability

Pending Publication Date: 2022-04-01
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The electrolyte membrane is expected to be thinner in order to reduce resistance, but if it is too thin, pinholes and cracks may occur

Method used

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  • Battery and membrane electrode assembly
  • Battery and membrane electrode assembly
  • Battery and membrane electrode assembly

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Embodiment

[0132] Hereinafter, although an Example is given and this invention is demonstrated, this invention is not limited to these at all.

[0133] By the above method, a high cis-diene polymer having a cis-1,4 bond content of 85% was obtained. Use this high cis-diene polymer to form a mesh sheet, and paste it on the figure 1 The illustrated PEFC 100 has the same PEFC gas diffusion layer, and a reinforcing material is provided between the gas diffusion layer and the spacer.

[0134] This thermal test was repeated by keeping the PEFC provided with the reinforcing material and the PEFC not provided with the reinforcing material at -30° C. for 1 hour in a constant humidity chamber, and then at 100° C. for 1 hour. The thermal test was performed every 5 cycles, and the presence or absence of damage in each layer of PEFC was visually checked. As a result, it was confirmed that the PEFC without a reinforcement material was destroyed earlier than that with a reinforcement material, and the ...

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Abstract

Provided is a highly durable battery or membrane electrode assembly. A battery (100) having a multilayer structure including a layer of a pair of electrodes (1), the battery (100) having a reinforcing material (20) provided within or between one or more layers.

Description

technical field [0001] The present invention relates to batteries and membrane electrode assemblies. Background technique [0002] Conventionally, chemical batteries such as lithium ion batteries and polymer electrolyte fuel cells (PEFC: Polymer Electrolyte Fuel Cell) have been used as batteries for supplying electric power to vehicles. Chemical cells generally have a stacked structure. For example, PEFC is a laminate in which a separator is laminated on a membrane electrode assembly, and a membrane electrode assembly is also a laminate in which a solid polymer electrolyte membrane is provided between a pair of electrodes. Electrodes are also often composed of multiple layers such as catalyst layers and gas diffusion layers. [0003] The electrolyte membrane is desired to be thinned in order to reduce resistance, but if it is too thin, pinholes and cracks may occur in some cases. Therefore, research and development of electrolyte membranes excellent in mechanical strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M8/1004H01M8/102H01M8/1041H01M8/1067
CPCH01M8/1004H01M8/102H01M8/1041H01M4/8657Y02E60/50
Inventor 高椋庄吾牧野真一
Owner ROBERT BOSCH GMBH
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