Patents by Inventor Leonid I. Boguslavsky

Leonid I. Boguslavsky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of forming cathodes comprising electroactive sulfur materials
    Patent number: 6406814
    Abstract: The present invention pertains to solid composite cathodes which comprise (a) an electroactive sulfur-containing cathode material which, in its oxidized state, comprises a polysulfide moiety of the formula, —Sm—, wherein m is an integer from 3 to 10; and (b) a non-electroactive particulate material having a strong adsorption of soluble polysulfides. The present invention also pertains to electric current producing cells comprising such solid composite cathodes, and methods of making such solid composite cathodes and electric current producing cells.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: June 18, 2002
    Assignee: Moltech Corporation
    Inventors: Alexander Gorkovenko, Terje A. Skotheim, Zhe-Sheng Xu, Leonid I. Boguslavsky, Zhongyi Deng, Shyama P. Mukherjee
  • Cathodes comprising electroactive sulfur materials and secondary batteries using same
    Patent number: 6210831
    Abstract: The present invention pertains to solid composite cathodes which comprise (a) an electroactive sulfur-containing cathode material which, in its oxidized state, comprises a polysulfide moiety of the formula, —Sm—, wherein m is an integer from 3 to 10; and (b) a non-electroactive particulate non-fibrous material having a strong adsorption of soluble polysulfides. The present invention also pertains to electric current producing cells comprising such solid composite cathodes, and methods of making such solid composite cathodes and electric current producing cells.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: April 3, 2001
    Assignee: Moltech Corporation
    Inventors: Alexander Gorkovenko, Terje A. Skotheim, Zhe-Sheng Xu, Leonid I. Boguslavsky, Zhongyi Deng, Shyama P. Mukherjee
  • Composition useful in electrolytes of secondary battery cells
    Patent number: 5962171
    Abstract: Provided is a nonaqueous electrolyte element for use in secondary battery cells which comprises an effective lithium stripping enhancing amount of one or more soluble materials, such as a lithium polysulfide, which increases the lithium stripping efficiency. Also provided is a secondary lithium battery cell comprising said nonaqueous electrolyte element. Such a nonaqueous electrolyte element can be advantageously used in the manufacture of secondary electric-current producing cell elements, and provides many advantages in achieving extended cycle life and increased safety of secondary lithium batteries.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: October 5, 1999
    Assignee: Moltech Corporation
    Inventors: Leonid I. Boguslavsky, Yuriy V. Mikhaylik, Alexei B. Gavrilov, Terje A. Skotheim