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Method for modifying garnet type composite solid electrolyte by plasma interface

A solid electrolyte, solid electrolyte membrane technology, applied in solid electrolyte, electrolyte, non-aqueous electrolyte and other directions, to achieve the effect of prolonging cycle life, simple process, and reducing polarization

Pending Publication Date: 2021-02-05
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the development of solid-state lithium batteries with superior performance still faces many scientific and technical challenges.

Method used

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  • Method for modifying garnet type composite solid electrolyte by plasma interface
  • Method for modifying garnet type composite solid electrolyte by plasma interface
  • Method for modifying garnet type composite solid electrolyte by plasma interface

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited to the content described.

[0037] As mentioned earlier, the development of solid-state lithium batteries with superior performance still faces many scientific and technical challenges: for example, large interface (solid-state electrode / electrolyte) resistance, volume change of electrode materials, low loading of electrode active materials, and cycle Poor stability etc. Among the many challenges, an important challenge that needs to be solved urgently is to improve the interface compatibility between solid electrodes and solid electrolytes. The key to overcoming this challenge is whether the interface treatment of solid electrolytes can be performed to improve the stability of solid electrolytes to solid electrodes. reduce its interfacial impedance.

[0038] In the embod...

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Abstract

The invention discloses a method for modifying garnet type composite solid electrolyte through a plasma interface, and belongs to the field of energy materials. According to the invention, the surfaceof the garnet type composite solid-state electrolyte is subjected to activation treatment by adopting plasma, so that the compatibility of the garnet type composite solid-state electrolyte with a solid-state electrode is improved, the interface impedance of the garnet type composite solid-state electrolyte is reduced, and the polarization of a solid-state lithium battery using the garnet type composite solid-state electrolyte is reduced; and the cycle life of the solid-state battery is prolonged, and the ionic conductivity of the garnet type composite solid-state electrolyte is improved. Themethod is short in period and low in cost, commercial production can be conducted, and application of the solid electrolyte in commercialization is further achieved.

Description

technical field [0001] The invention relates to the field of new energy materials, in particular to a method for modifying a garnet-type composite solid electrolyte at a plasma interface. Background technique [0002] Since the 21st century, human society has been developing rapidly. Human beings enjoy the benefits brought by many technologies, but at the same time they have to face various environmental problems such as: the increasingly depleted fossil fuel resources, the increasingly obvious global greenhouse effect, etc. This forces mankind to change the current energy consumption pattern and vigorously develop renewable clean energy. At the same time, lithium-ion batteries have attracted widespread attention as efficient energy storage devices for clean energy. [0003] At present, lithium-ion batteries are based on organic electrolytes for lithium-ion conduction, thereby realizing energy storage and conversion. However, in practical applications, lithium-ion batterie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/056H01M10/0525
CPCH01M10/056H01M10/0525H01M2300/0065H01M2300/0091Y02E60/10
Inventor 梁风黄健侯敏杰杨泻铖张达戴永年
Owner KUNMING UNIV OF SCI & TECH
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