Method for producing anode active material containing lithium, magnesium compound oxide

A technology of composite oxides and active materials, which is applied in the field of preparation of positive multi-component active materials, can solve the problems of low capacity of lithium manganese oxide positive electrode materials, limited application range, complex synthesis process, etc., to improve electrochemical performance and heat treatment time The effect of shortening and simple synthesis process
CN100342568CInactive Publication Date: 2007-10-10HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2007-10-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for preparing positive electrode multielement active material containing lithium / manganese composite oxide includes directly using lithium hydroxide coprecipitation to prepare M ( OH )2 , mixing it with lithium salt in grinding , forming plate by pressing , prebaking , cooled ball grinding , forming plate by pressing and backing . In the method , applied nickel salt is nickel acetate or nickel nitrate , applied cobalt salt is cobalt acetate or cobalt nitrate, applied manganese salt is manganese nitrate or manganese acetate and applied lithium salt is lithium carbonate or lithium acetate .
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Description

technical field

[0001] The technical solution of the present invention relates to an electrode that selects lithium manganese oxide as one of the active materials, specifically a method for preparing a positive multi-element active material containing lithium manganese composite oxide in a lithium ion battery. Background technique

[0002] Batteries are an indispensable energy component for many portable devices. Lithium-ion batteries have higher energy density and cycle performance than other rechargeable batteries. Due to the rapid development of electronic products, electric vehicles and various battery-powered products, the demand for lithium-ion batteries has increased. Commercial lithium-ion batteries are mainly based on layered LiCoO 2 It is a positive electrode material, but cobalt resources are scarce, toxic, polluting the environment and expensive, which limits the further development of lithium-ion batteries, forcing people to devote themselves to the developmen...

Claims

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