公开(公告)号：KR20100053758A

公开(公告)日：2010-05-24

申请号：KR20080112529

申请日：2008-11-13

Applicant: KOREA ELECTRONICS TELECOMM ,  IUCF HYU

Inventor： LEE YOUNG GI ,  KIM KWANG MAN ,  KIM JONG DAE ,  CHO JAE PHIL ,  LIM SUN HYE

IPC: H01M4/04 ,  H01M4/60 ,  H01M10/36

CPC classification number: H01M4/505 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/366

Abstract: PURPOSE: A manufacturing method of positive electrode active material powder, and the positive electrode active material powder manufactured therefrom are provided to form a coating film with a uniform thickness, and to prevent a leakage of manganese. CONSTITUTION: A manufacturing method of positive electrode active material powder comprises the following steps: melting a water-soluble polymer(12) to water; coating the water soluble polymer on the surface of a positive electrode active material particle(10) by adding the positive electrode active material particle to the water and stirring; adsorbing metal ions to the surface of the coated positive electrode active material particle; filtering and drying the positive electrode active material powder; and sintering the powder for forming a coating film(16).

Abstract translation: 目的：提供正极活性物质粉末的制造方法和由其制造的正极活性物质粉末，以形成厚度均匀的涂膜，并防止锰的泄漏。 构成：正极活性物质粉末的制造方法包括以下步骤：将水溶性聚合物（12）熔融成水; 通过将正极活性物质颗粒添加到水中并搅拌，将正极活性物质颗粒（10）的表面上的水溶性聚合物涂布; 将金属离子吸附到被覆正极活性物质粒子的表面上; 过滤和干燥正极活性物质粉末; 并烧结用于形成涂膜（16）的粉末。