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Применить Всего найдено 3. Отображено 3.
05-01-2005 дата публикации

一种锂锰氧化物的制备方法及其在电池中的应用

Номер: CN0001560936A
Автор: TONG QINGSONG, YANG YONG, LIN SUYING, QINGSONG TONG, YONG YANG, SUYING LIN, 童庆松
Принадлежит:

This invention provides a method for synthesizing LiMn oxide by low temperature two-stage sintering and its usage in Li ionic cells or Li cells including: weighing Li hydroxide, Mn acetate, citric acid and complexon III, mixing the soluble Mn2+ solution with the citric acid solution to solution I, mixing the Li hydroxide solution with the complexon III solution to form solution II mixed with I and heated to get a gel to be sintered by microwave which can be used as the positive material of Li ionic cells or Li cells. The quick warm-up temperature can be realized in a short period by the microwave sintering method changing the method of conventional long time high temperature sintering to make the chemical composition and granularity of the synthesizer uniform and keep the measurement ratio of the original synthesizer. The chelatc method can improve its uniformity.

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Номер записи: 1
14-04-2023 дата публикации

Method for preparing doped graphene-polyethylene glycol conversion film by vacuum adsorption method

Номер: CN115966838A
Автор: GAO FENG, TONG JUNKAI, WONG TSZ YAN, SU DUNHOU, TONG QINGSONG, WENG JINGZHENG
Принадлежит:

The invention discloses a method for preparing a doped graphene-polyethylene glycol conversion film by a vacuum adsorption method, which comprises the following steps: casting a mixed solution prepared from a polyethylene glycol polymer, a pore-forming agent, cyclodextrin group molecules, an end-capped polymer and a doped graphene additive into a film, and carrying out ultrasonic treatment in water, ethanol or an aqueous solution of ethanol to obtain the doped graphene-polyethylene glycol conversion film. The preparation method comprises the following steps: forming a conversion film, performing vacuum drying, removing a pore forming agent, vacuumizing, spraying electrolyte and the like to prepare polymer electrolyte, namely the doped graphene-polyethylene glycol-based conversion film. According to the invention, the liquid absorption and retention capability, high temperature resistance, ionic conductivity, surface impedance and battery compatibility of the polymer film can be obviously ...

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Номер записи: 2
25-04-2023 дата публикации

Preparation method of graft-doped graphene-polyethylene glycol-based conversion film electrolyte

Номер: CN116014352A
Автор: TONG QINGSONG, TONG JUNKAI, WONG TSZ YAN, WU YONGWEN, GAO FENG, WENG JINGZHENG
Принадлежит:

The invention relates to a preparation method of a grafted doped graphene-polyethylene glycol conversion film electrolyte, which comprises the following steps: casting a mixed solution of a polyethylene glycol polymer, a pore forming agent, cyclodextrin group molecules, an end-capped polymer and an additive to form a film, placing the film in a conversion solution, forming a conversion film and a porous conversion film, drying the porous conversion film, spraying the electrolyte and the like, thereby obtaining the grafted doped graphene-polyethylene glycol conversion film electrolyte. And preparing the conversion film electrolyte. According to the invention, the liquid absorption and retention capability, high temperature resistance, ionic conductivity, surface impedance and battery compatibility of the conversion film can be obviously improved.

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Номер записи: 3