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Lithium-ion-conducting composite material, comprising at least one polymer and lithium-ion-conducting particles

一种复合材料、传导粒子的技术，应用在锂蓄电池、电池、可持续制造/加工等方向，能够解决晶界电导率下降等问题，达到提高电导率的效果

Active Publication Date: 2019-01-04
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In contrast, when the corresponding samples were similarly treated in 1 M LiOH solution, distilled water, or 0.1 M hydrochloric acid as modifiers, the grain boundary conductivity decreased

Method used

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  • Lithium-ion-conducting composite material, comprising at least one polymer and lithium-ion-conducting particles
  • Lithium-ion-conducting composite material, comprising at least one polymer and lithium-ion-conducting particles
  • Lithium-ion-conducting composite material, comprising at least one polymer and lithium-ion-conducting particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0101] Silanization with GLYEO:

[0102] 10.0 g lithium lanthanum zirconium oxide (LLZO) powder (d 50 =0.4μm, specific surface area: 2.5m 2 / g) was dispersed in 75 ml of isopropanol. Dissolve the particle suspension with 12 ml of 25% NH by stirring 4 OH aqueous solution mixed. Then 0.9 ml of 3-glycidyloxypropyltrimethoxysilane was added and the reaction mixture was left under stirring for 24 hours. After the reaction was complete, the solid was isolated by centrifugation, redissolved in isopropanol, washed and centrifuged again. Finally, the wet residue was dried in a drying oven at 65 °C for 5 h.

[0103] Grind in PEG 400:

[0104] 70.0 g lithium lanthanum zirconium oxide (LLZO) powder (d 50 =0.4μm, specific surface area: 2.5m 2 / g) was added to a mixture of 140 g of polyethylene glycol 400 (PEG 400) and 50 ml of isopropanol. The particle suspension was mixed with 1030g ZrO 2 Grinding beads (d = 0.7-0.9 mm) were mixed and the batch was processed in a Netzsch PE 075S...

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Abstract

A lithium-ion-conducting composite material is described, comprising at least one polymer and lithium-ion-conducting particles, wherein the interfacial resistance for the lithium-ion conductivity between the polymer and the particles is reduced as a result of a change in the surface of the particles, and consequently the lithium-ion conductivity is greater than in the case of a comparable composite material in which the interfacial resistance between the polymer and the particles is not reduced.

Description

technical field [0001] The invention relates to a lithium ion conducting composite material, wherein the composite material comprises at least one polymer and lithium ion conducting particles. Background technique [0002] A major challenge for safe, reliable and efficient implementation of solutions in the field of electric vehicles is to provide electrochemical storage components with high energy density and high power density. Lithium-ion batteries also have a series of excellent properties (such as high energy density, high power density, long life cycle, and good environmental compatibility), making them an energy supply unit in the above-mentioned application fields. [0003] Li-ion batteries generally consist of the following components: a cathode, an anode, an electrically insulating separator, and a lithium-ion conducting electrolyte. During discharge, lithium ions migrate from the anode through the electrolyte and separator to the cathode where lithium ions interc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/052H01M10/056C08J5/22H01M2/16H01M2/14H01M4/36
CPCC08J5/22H01M10/052H01M10/056H01M2220/20H01M2300/0065H01M2300/0091Y02E60/10H01M50/409H01M4/62H01M4/366H01M50/403H01M10/0565H01M2300/0082Y02P70/50
Inventor J·舒马赫J·德鲁克H-J·施密特P·特莱斯M·孔泽A·罗特斯M·施耐德
Owner SCHOTT AG
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