Synthesis method of ball-shaped mixed with/nickelnous hydroxide and multielement metal oxide and battery

A nickel hydroxide and synthesis method technology, applied in the field of high-energy electrochemistry, can solve the problems of irregular microstructure of intermediate particles, destroy hierarchical structure, wide size distribution, etc., achieve uniform particle size, improve stability, and particle size distribution narrow effect
CN1868895AInactive Publication Date: 2006-11-29SHENZHEN BAK BATTERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN BAK BATTERY CO LTD
Publication Date
2006-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A process for preparing the doped spherical nickelous hydroxide includes such steps as mixing 2-valence Ni salt and Co salt with ammonia water and ammoniunm salt to obtain complex solution, adding it along with the mixed solution of metallic salt and alkali solution into reactor, reaction while stirring, and washing the deposit. The resultant doped spherical nickelous hydroxide can be used to prepare the multi-element metallic oxide, which can be used to prepare the active positive electrode of Li-ion battery.
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Description

【Technical field】

[0001] The invention belongs to the field of high-energy electrochemistry, and specifically relates to a synthesis method of spherical doped nickel hydroxide and multiple metal oxides and a lithium ion battery. 【Background technique】

[0002] At present, lithium-ion batteries are widely used in electronic devices such as mobile phones, laptop computers, and portable audio-visual equipment, but the positive electrode material lithium cobalt oxide (LiCoO 2 ) but the price keeps rising due to resource problems, which limits the development of lithium-ion batteries. Therefore, continuous efforts have been made to find suitable alternative materials. Composite cathode materials such as cobalt-nickel-manganese have been studied most recently. The most commonly used method reported in the literature is the co-precipitation method. In this method, the metal salt is made into a solution in a certain proportion, and additives such as ammonia water are added to con...

Claims

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