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。

公开(公告)号：KR20100056251A

公开(公告)日：2010-05-27

申请号：KR20080115329

申请日：2008-11-19

Applicant: IUCF HYU

Inventor： CHO JAE PHIL ,  KIM MIN GYU

IPC: H01M4/58 ,  H01M4/04 ,  H01M10/05

CPC classification number: H01M4/661 ,  H01M4/0404 ,  H01M4/38 ,  H01M10/052 ,  H01M4/134 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122

Abstract: PURPOSE: A negative active material used for a secondary lithium battery is provided to obtain structural stability by preventing phase analysis even when charging/discharging is repetitively practiced at 0-1.5V and to have superior cycle lifetime and capabilities. CONSTITUTION: A negative active material used for a secondary lithium battery includes an Mo_xM_yP_z compound. In the compound, M is selected from a group comprising Co, Mn, Fe, Ni, Zn, and combinations thereof. The negative active material has a nanoparticle cluster shape. A method for manufacturing the negative active material comprises a step of mixing Mo, metal M, and P and a step of plasticizing mixture powder after milling the mixture. The lithium secondary battery includes an anode(3) including anodic active material, a cathode(2) including the negative active material, and an electrolyte.

Abstract translation: 目的：提供用于二次锂电池的负极活性物质，以便即使当在0-1.5V下重复实施充电/放电并且具有优异的循环寿命和能力时，通过防止相分析来获得结构稳定性。 构成：用于二次锂电池的负极活性材料包括Mo_xM_yP_z化合物。 在该化合物中，M选自Co，Mn，Fe，Ni，Zn及其组合。 负极活性物质具有纳米颗粒簇形状。 用于制造负极活性物质的方法包括混合Mo，金属M和P的步骤和在研磨混合物之后使混合物粉末增塑的步骤。 锂二次电池包括包含阳极活性材料的阳极（3），包含负极活性物质的阴极（2）和电解质。