公开(公告)号：US06440288B1

公开(公告)日：2002-08-27

申请号：US09691153

申请日：2000-10-19

Applicant: Su Il Pyun ,  Woo Jin Lee

Inventor： Su Il Pyun ,  Woo Jin Lee

IPC: C25D1112

CPC classification number: H01G9/0032 ,  Y10S205/917

Abstract: Disclosed is a method for forming an aluminum oxide film of a large surface area on an electrode for a high voltage electrolytic capacitor. In accordance with the method, an oxide film of a uniform thickness is formed, prior to a process of etching the oxide film. A re-anodization is then partially conducted for an etched portion of the oxide film. The resultant oxide film has an increased surface area. The method of the invention makes it possible to prepare a dielectric oxide film having characteristics of a uniform thickness and a large surface area. In accordance with the invention, it is possible to expect an increase in the capacitance of electrolytic capacitors.

Abstract translation: 公开了一种在高压电解电容器用电极上形成表面积大的氧化铝膜的方法。 根据该方法，在蚀刻氧化膜的过程之前，形成均匀厚度的氧化物膜。 然后对氧化膜的蚀刻部分部分地进行再阳极氧化。 所得氧化膜的表面积增加。 本发明的方法可以制备具有均匀厚度和大表面积特性的电介质氧化膜。 根据本发明，可以预期电解电容器的电容增加。

公开(公告)号：US06187476B1

公开(公告)日：2001-02-13

申请号：US09006754

申请日：1998-01-14

Applicant: Su Il Pyun ,  Yong Min Choe

Inventor： Su Il Pyun ,  Yong Min Choe

IPC: H01M458

CPC classification number: H01M4/1391 ,  C01G51/42 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2002/82 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/525 ,  H01M4/623 ,  H01M10/052

Abstract: A method for making an electrode for lithium secondary cells. Lithium and cobalt ions are co-precipitated in an alkaline solution in such a way that the ratio of the former to the latter is 1.05:1 or more and then, are thermally treated to give LiCoO2 powder. This ternary system compound is combined with a current collector and a binder. The electrode has an initial discharge capacity of 160 mAh/g and retains 90% of the initial capacity even after 400 times of charge/discharge cycle.

Abstract translation: 一种锂二次电池用电极的制造方法。 锂和钴离子在碱性溶液中共沉淀，使得前者与后者的比例为1.05:1或更高，然后进行热处理，得到LiCoO2粉末。 该三元体系化合物与集流体和粘合剂组合。 电极具有160mAh / g的初始放电容量，并且即使在400次充电/放电循环之后也保持90％的初始容量。