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A kind of heat treatment method of solid electrolyte film and structure of lithium battery

A technology of solid electrolyte and heat treatment method, which is used in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, electrolytes, etc., can solve the problems of reducing the capacity retention rate and structural stability of electrode materials, and achieve the maintenance of charge-discharge cycle performance and improve conductivity. , the effect of reducing the impact

Active Publication Date: 2022-02-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] In order to overcome the problem that the capacity retention rate and structural stability of the electrode material are reduced when the solid electrolyte film is heated, the present invention provides a method that can realize a good heat treatment of the solid electrolyte film to improve the conductivity of the solid electrolyte film. and a heat treatment method for a solid electrolyte film that maintains the electrical conductivity of the electrode material

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  • A kind of heat treatment method of solid electrolyte film and structure of lithium battery
  • A kind of heat treatment method of solid electrolyte film and structure of lithium battery
  • A kind of heat treatment method of solid electrolyte film and structure of lithium battery

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] see figure 1 , the first embodiment of the present invention provides a heat treatment method of a solid electrolyte film, the heat treatment method of the solid electrolyte film includes the following steps:

[0044] S1: providing a solid electrolyte film to be processed with a certain thickness, the solid electrolyte film to be processed is formed on the electrode structure, and the solid electrolyte film to be processed includes solid electrolyte molecules;

[0045] S2: selecting a pulse light source with a specific wavelength and pulse parameters to heat-treat the solid...

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Abstract

The invention relates to the technical field of lithium batteries, and relates to a heat treatment method for a solid electrolyte film and a lithium battery core structure. A heat treatment method for a solid electrolyte film, comprising: providing a solid electrolyte film to be treated with a certain thickness, the solid electrolyte film to be treated is formed on an electrode structure, the solid electrolyte film to be treated includes solid electrolyte molecules; pulses with specific wavelengths and pulse parameters are selected The light source heat-treats the solid electrolyte film to be treated, and the photon energy of the pulse light source with a specific wavelength is greater than or equal to the energy difference before and after the energy level transition of the solid electrolyte molecules; cooling the heat-treated solid electrolyte film. A specific pulse light source is used to heat-treat the solid electrolyte film to be treated, thereby changing the crystal phase structure of the solid electrolyte film to be treated, thereby changing the bulk phase and grain boundary impedance of the solid electrolyte film, and improving the conductivity.

Description

【Technical field】 [0001] The invention relates to the technical field of lithium batteries, in particular to a heat treatment method for a solid electrolyte film and a lithium battery core structure. 【Background technique】 [0002] In the process of preparing lithium batteries, it is necessary to treat the solid electrolyte film according to actual needs. Among them, the heat treatment technology can change the characteristics of the solid electrolyte film, reduce the grain boundary impedance of the solid electrolyte film, thereby improving the conduction of conductive lithium ions; secondly, the heat treatment technology can also improve the interfacial contact performance between the solid electrolyte film and the electrode. Improve and reduce interface impedance, thereby improving battery performance. [0003] The existing technology mainly uses a heater to heat the solid electrolyte film. Due to the uncontrollability of the heating process, it is easy to have a great im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0562H01M10/058
CPCH01M10/0562H01M10/058H01M2300/0071Y02E60/10Y02P70/50
Inventor 向勇张祎张晓琨
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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