Sulfide electrolyte material and preparation method thereof

A technology of sulfide electrolyte and lithium sulfide, which is applied in the manufacture of electrolyte batteries, electrolytes, non-aqueous electrolyte batteries, etc., and can solve problems such as difficult industrial scale production, complicated manufacturing methods, and increased costs
CN103500853AActive Publication Date: 2014-01-08ZHEJIANG FUNLITHIUM NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG FUNLITHIUM NEW ENERGY TECH CO LTD
Publication Date
2014-01-08

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Abstract

The invention provides a preparation method of a sulfide electrolyte material as shown in a formula (I). The preparation method comprises the steps of mixing lithium sulfide, phosphorus pentasulfide and an organic solution to obtain a mixed solution; stirring, centrifuging, filtering and drying the mixed solution sequentially to obtain an initial material; performing heat treatment on the initial material to obtain the sulfide electrolyte material as shown in the formula (I). In the preparation process of the sulfide electrolyte material, lithium sulfide and phosphorus pentasulfide are dissolved into an organic solvent and react to form a compound containing Li, P and S, the compound and the organic solvent form a crystalline state, and then centrifuging, filtering, drying and heat treatment processes are performed sequentially to obtain the sulfide electrolyte material, so that the preparation method of the sulfide electrolyte material, provided by the invention, is simple and easy to operate.
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Description

technical field

[0001] The invention relates to the technical field of lithium ion batteries, in particular to a sulfide electrolyte material and a preparation method thereof. Background technique

[0002] Currently, lithium secondary batteries are widely used in daily life and become an inseparable part of society. Lithium secondary batteries have the advantages of large output power, high energy density, long service life, high average output voltage, small self-discharge, no memory effect, fast charge and discharge, excellent cycle performance and no environmental pollution. The preferred object of rechargeable power supply for electronic products is also considered to be the most competitive vehicle power battery. Lithium secondary batteries are classified into liquid lithium secondary batteries and solid lithium secondary batteries. Among them, a solid-state lithium secondary battery refers to a lithium secondary battery in which each unit of the battery includes a po...

Claims

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