Electrode of power storage device using solid electrolyte, power storage device, and production method for positive electrode layer or negative electrode layer of power storage device

A solid electrolyte and power storage device technology, applied in the direction of non-aqueous electrolyte battery electrodes, solid electrolytes, non-aqueous electrolyte batteries, etc., can solve the problems of capacity degradation, active material stripping, etc., and achieve the effect of reducing expansion and contraction and good electrical connection

Pending Publication Date: 2021-09-28
SHENZHEN I&T MICRO ALUMINUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, there are problems of capacity degradation due to expansion and contraction of active materials during charge and discharge cycles, and problems related to peeling of active materials from current collectors.

Method used

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  • Electrode of power storage device using solid electrolyte, power storage device, and production method for positive electrode layer or negative electrode layer of power storage device
  • Electrode of power storage device using solid electrolyte, power storage device, and production method for positive electrode layer or negative electrode layer of power storage device
  • Electrode of power storage device using solid electrolyte, power storage device, and production method for positive electrode layer or negative electrode layer of power storage device

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Embodiment Construction

[0037] Hereinafter, an electric storage device (all solid state battery) according to one embodiment will be described with reference to an example of an all solid lithium ion secondary battery. It should be noted that this embodiment can be used in all solid state batteries such as all solid sodium ion secondary batteries, all solid magnesium ion secondary batteries, air batteries using solid electrolytes, or using Si (silicon) negative electrodes. An all-solid-state lithium-ion secondary battery with severe expansion and contraction.

[0038] An example of a schematic diagram of the structure of an all-solid-state battery is shown in figure 1 shown. An all-solid battery is roughly composed of a positive electrode current collector 1 , a positive electrode layer 2 , a solid electrolyte layer 3 , a negative electrode layer 4 , and a negative electrode current collector 5 . The positive electrode layer 2 includes, for example, a positive electrode active material, a conductiv...

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Abstract

To make it possible to reduce the effects of electrode expansion and contraction in a power storage device, and to maintain the battery properties of the device. An electrode (2, 4) of a power storage device according to the present invention comprises: metal fibers (A); an adsorptive material powder on which electrolyte ions adsorb during charging and discharging or an active material powder (11, 21) which undergoes a chemical reaction during charging and discharging, the adsorptive material powder or active material powder (11, 21) being in contact with the metal fibers (A); and a solid electrolyte (14, 24) in powder form which is in contact with the metal fibers (A).

Description

technical field [0001] The present invention relates to an electrode of an electrical storage device using a solid electrolyte, an electrical storage device, and a method for manufacturing a positive electrode layer or a negative electrode layer of the electrical storage device. Background technique [0002] Secondary batteries are being used in various fields for the purpose of energy reduction and prevention of global warming, and the use of electric energy in the automobile industry in particular has accelerated research and development related to secondary batteries. Therefore, in recent years, research on metal-air batteries, sodium-ion batteries, lithium-ion batteries, magnesium-ion batteries, and the like has been actively conducted in the development of next-generation storage batteries. [0003] Lithium-ion batteries (hereinafter also referred to as LiB) are secondary batteries that have been most used in recent years because they can be used at a voltage as high as...

Claims

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Application Information

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IPC IPC(8): H01M4/13H01G11/48H01G11/86H01M10/052H01M10/0562H01M4/139H01M4/62H01M4/80H01G11/24
CPCH01G11/48H01M4/62H01M10/0562H01G11/86H01G11/26H01G11/84H01G11/70H01G11/68H01M2004/027H01M2004/028H01M10/0565H01M10/0525H01M2300/0068H01M2300/0082H01M2300/008H01M4/626H01M4/131H01M4/0404H01M4/1391Y02E60/10H01M4/13H01M4/80H01M4/747H01M4/139H01M4/0416H01M4/043H01M10/052H01G11/24H01G11/38H01G11/56H01M4/625H01M2004/021
Inventor 莲尾俊治
Owner SHENZHEN I&T MICRO ALUMINUM TECH CO LTD
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