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Lithium-ion battery reference electrode preparation method and lithium-ion battery reference electrode

A lithium-ion battery, reference electrode technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as poor stability, uneven coating, and low lithium content in the reference electrode

Active Publication Date: 2021-02-19
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a high lithium content, uniform coating, stable High lithium ion battery reference electrode preparation method and lithium ion battery reference electrode

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0041] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom"...

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Abstract

The present application provides a preparation method of a lithium ion battery reference electrode and the lithium ion battery reference electrode. The alloy layer is arranged between the lithium-friendly reference electrode substrate and the lithium metal layer, and plays a stabilizing role in the potential of the reference electrode of the lithium-ion battery. The solid electrolyte interfacial film layer covers the lithium-friendly reference electrode substrate, the alloy layer and the lithium metal layer, and protects the reference electrode of the lithium-ion battery. The lithium metal layer is sandwiched between the alloy layer and the solid electrolyte interface film layer, which can ensure the protection of the lithium metal layer during long-term measurement, and is not prone to potential drift. The preparation method of the reference electrode of the lithium ion battery can make the lithium metal layer uniformly cover the surface of the lithium-friendly reference electrode substrate. When measuring for a long time, the stability of the reference electrode of the lithium-ion battery can be improved through the alloy layer, lithium metal layer and solid electrolyte interface film layer to meet the needs of real-time monitoring inside the lithium-ion battery.

Description

technical field [0001] The present application relates to the technical field of electrode potential detection and electrode production, in particular to a preparation method of a lithium-ion battery reference electrode and a lithium-ion battery reference electrode. Background technique [0002] Lithium-ion batteries are widely used in notebook computers, mobile phones, cameras, instruments, electric tools and other terminals due to their excellent characteristics such as high energy density, high output voltage, low self-discharge rate, long service life, no memory effect and environmental friendliness. equipment. Electrode potential is a very important parameter in the research technology of electrochemistry and battery. The electrode potential in a thermodynamic equilibrium state is the open circuit potential. In practical applications, the voltage-SOC curve obtained by charging and discharging with a small current can be approximately considered to be the open circuit v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30H01M10/0525H01M10/48
CPCG01N27/301H01M10/0525H01M10/48Y02E60/10
Inventor 刘金海韩雪冰褚政宇卢兰光欧阳明高郑岳久
Owner TSINGHUA UNIV
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