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Solid-state electrolyte, lithium battery cell and lithium battery

A solid electrolyte, lithium battery technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as poor performance of solid electrolytes, and achieve the effects of tight packaging, cell protection, and long service life

Inactive Publication Date: 2019-06-25
成都大超科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problem of poor performance of the existing solid electrolyte, the invention provides a solid electrolyte and its lithium battery cell, lithium battery

Method used

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  • Solid-state electrolyte, lithium battery cell and lithium battery
  • Solid-state electrolyte, lithium battery cell and lithium battery
  • Solid-state electrolyte, lithium battery cell and lithium battery

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Embodiment Construction

[0028] 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.

[0029] The first embodiment of the present invention provides a solid electrolyte comprising an organic metal framework and an electrolyte filled in the organic metal framework, the organic metal framework comprising X-MOFs, X-BTTri, or X- One or more of dobdc, said X includes one or more of Cu, Mg, or Zn, and said s includes one or more of 5, 177 or 210. The electrolyte includes Li 3 sn 2 (PO 4 ) 3 or Li 3 Ge 2 (PO 4 ) 3 either or both of them.

[0030] It can be understood that the organometallic framework includes Mg-MOF-5, Zn-MOF-5, Cu-MOF-5, Mg-MOF-177, Zn-MOF-177Cu-M...

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Abstract

The invention relates to the field of lithium batteries, in particular to a solid-state electrolyte, a lithium battery cell and a lithium battery. The solid-state electrolyte includes an organic metalframe and an electrolyte filling the organic metal frame. The organic metal frame includes one or more of X-MOFs, X-BTTri and X-dobdc, wherein the X includes one or more of Cu, Mg and Zn, the s includes one or more of 5, 177 and 210, and the mass mixing ratio of the electrolyte to the organic frame is between 1:10 and 10:1. The solid-state electrolyte has a stable structure, and has the advantages of electrochemical window above 5V, better viscosity, flexibility, interfacial wettability and interfacial adhesion, high Li ion conductivity, high tolerance, high shear modulus, high Young's modulus and capability of inhibiting the growth of lithium dendrites.

Description

【Technical field】 [0001] The invention relates to the field of lithium batteries, in particular to a solid electrolyte, a lithium battery cell, and a lithium battery. 【Background technique】 [0002] Compared with traditional liquid electrolytes, all-solid electrolytes have the advantages of high mechanical strength and good safety. However, except for sulfide, the existing solid-state electrolyte systems have low lithium ion conductivity, and generally the ion conductivity at room temperature is less than 10. -3 S / cm, and the sulfide solid electrolyte is very sensitive to water and air, and all the reported solid electrolyte materials have a large interface resistance after contacting the positive and negative electrode materials, resulting in a short cycle life. [0003] However, the inorganic powder or film material used in general solid electrolyte materials is polycrystalline material, which has low lithium ion conductivity, low working voltage, and poor interface wetta...

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Application Information

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IPC IPC(8): H01M10/056H01M10/0525
CPCY02E60/10
Inventor 张晓琨朱焱麟
Owner 成都大超科技有限公司
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