Positive electrode material for lithium ion battery and preparation method of positive electrode material

A technology for lithium-ion batteries and positive electrode materials, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of poor solid-phase reaction promotion effect, low cycle capacity retention rate, large energy consumption, etc., and achieve excellent cycle performance , low cost, uniform surface effect
CN104091918AActive Publication Date: 2014-10-08TIANJIN GUOAN MGL NEW MATERIALS TECH CO LTD
4 Cites 30 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN GUOAN MGL NEW MATERIALS TECH CO LTD
Publication Date
2014-10-08
Patent Text Reader

Abstract

The invention discloses a positive electrode material for a lithium ion battery as well as a preparation method and application of the positive electrode material. Slurry prepared from the positive electrode material for the lithium ion battery is still stable after being arranged for a period of time and cannot be gelled, and therefore, a positive electrode piece can be prepared easily; meanwhile, the positive electrode material has excellent cycle performance at high temperature and under high voltage. According to the method for preparing the positive electrode material for the lithium ion battery, a microwave absorbent is added so that raw materials can be synthesized and subjected to coating reaction under a relatively high microwave power without secondary high-temperature annealing, and the added microwave absorbent which is taken as the raw material of the coating does not need to be removed, preparation operation is simple and industrial practicability is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of lithium ion battery preparation, in particular to a modified lithium ion battery positive electrode material and a preparation method thereof. Background technique

[0002] With the continuous expansion of the application field of lithium-ion secondary batteries, especially the application in mobile phones, notebook computers and electric vehicles, etc., the development of lithium-ion secondary battery materials has brought broad prospects. The performance and price of battery materials also put forward higher requirements. Among them, the most urgent requirement is to improve the energy density of lithium-ion batteries while ensuring the safety performance of lithium-ion batteries.

[0003] There are two main ways to increase the energy density of lithium-ion batteries. One is to increase the capacity of lithium-ion battery electrode materials, and the other is to increase the operating voltage of lithium-ion batt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More