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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrafine inorganic powder for coating new energy lithium battery diaphragm
The invention discloses ultrafine inorganic powder for coating a new energy lithium battery diaphragm. The ultrafine inorganic powder is prepared by the following steps: S1, pretreating and preparing materials; S2, carrying out pulping treatment; S3, performing primary calcination; S4, pulping and dispersing; S5, carrying out primary dull polish; S6, carrying out primary drying; S7, carrying out secondary calcination; S8, carrying out secondary dull polish; S9, carrying out secondary drying; and S10, carrying out post-treatment. The high-purity ultrafine inorganic powder for a power lithium battery diaphragm is prepared by taking the aluminum oxide as a main raw material, a hydrothermal method is adopted as a basis, the production process is simple, no air or water pollution is caused, the national environmental protection policy is met, batch production is facilitated, and the granularity of the powder is controllable by adopting two-time calcining and two-time grinding processes; the sintering aggregation condition is reduced, the ball milling cost is reduced, good particle size distribution is realized, and meanwhile, the characteristics of high purity, low aggregation degree, good powder dispersity, small particle size, near-spherical morphology and narrow particle size distribution of the powder are ensured by configuring a homogenization process and an airflow classification process of a mixed auxiliary agent.
本发明公开一种新能源锂电池隔膜涂覆用超细无机粉体，由以下步骤制成S1、预处理备料；S2、打浆处理；S3、一次煅烧；S4、打浆分散；S5、一次磨砂；S6、一次干燥；S7、二次煅烧；S8、二次磨砂；S9、二次干燥；S10、后期处理组成。本发明以氧化铝为主要原料制备动力锂电池隔膜用高纯超细无机粉体，并且采用水热法氧化铝为基础，生产工艺简单，无任何空气和水污染，符合国家环保政策，便于批量化生产，采取两次煅烧和两次研磨工艺使粉体粒度可控，降低烧结聚集状况，减少球磨成本，实现粒度良好分布，同时配置混合型助剂的均化工艺和气流分级工艺保证粉体高纯度、团聚程度低，粉末分散性好，粒径小、近球形形貌和窄粒径分布的特征。
Ultrafine inorganic powder for coating new energy lithium battery diaphragm
The invention discloses ultrafine inorganic powder for coating a new energy lithium battery diaphragm. The ultrafine inorganic powder is prepared by the following steps: S1, pretreating and preparing materials; S2, carrying out pulping treatment; S3, performing primary calcination; S4, pulping and dispersing; S5, carrying out primary dull polish; S6, carrying out primary drying; S7, carrying out secondary calcination; S8, carrying out secondary dull polish; S9, carrying out secondary drying; and S10, carrying out post-treatment. The high-purity ultrafine inorganic powder for a power lithium battery diaphragm is prepared by taking the aluminum oxide as a main raw material, a hydrothermal method is adopted as a basis, the production process is simple, no air or water pollution is caused, the national environmental protection policy is met, batch production is facilitated, and the granularity of the powder is controllable by adopting two-time calcining and two-time grinding processes; the sintering aggregation condition is reduced, the ball milling cost is reduced, good particle size distribution is realized, and meanwhile, the characteristics of high purity, low aggregation degree, good powder dispersity, small particle size, near-spherical morphology and narrow particle size distribution of the powder are ensured by configuring a homogenization process and an airflow classification process of a mixed auxiliary agent.
本发明公开一种新能源锂电池隔膜涂覆用超细无机粉体，由以下步骤制成S1、预处理备料；S2、打浆处理；S3、一次煅烧；S4、打浆分散；S5、一次磨砂；S6、一次干燥；S7、二次煅烧；S8、二次磨砂；S9、二次干燥；S10、后期处理组成。本发明以氧化铝为主要原料制备动力锂电池隔膜用高纯超细无机粉体，并且采用水热法氧化铝为基础，生产工艺简单，无任何空气和水污染，符合国家环保政策，便于批量化生产，采取两次煅烧和两次研磨工艺使粉体粒度可控，降低烧结聚集状况，减少球磨成本，实现粒度良好分布，同时配置混合型助剂的均化工艺和气流分级工艺保证粉体高纯度、团聚程度低，粉末分散性好，粒径小、近球形形貌和窄粒径分布的特征。
Ultrafine inorganic powder for coating new energy lithium battery diaphragm
一种新能源锂电池隔膜涂覆用超细无机粉体
WANG WEN (Autor:in) / WANG QING (Autor:in) / SUN HUAJUN (Autor:in) / WANG HENGJU (Autor:in)
16.04.2021
Patent
Elektronische Ressource
Chinesisch
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