Patents by Inventor Chai Chul

Chai Chul 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).

  • Organic lithium salt electrolytes having enhanced safety for rechargeable batteries and methods of making the same
    Patent number: 7534527
    Abstract: Organic lithium salts suitable for use in electrolytes for primary or secondary rechargeable batteries include de-localized bulky anions over Lewis acid fragments, typically BF3, and organic moieties. The organic moieties may be, for example, anions derived from fused nitrogen heterocycles (e.g. benzeneimidate, benzitriazolate and the like); multi carboxylates (e.g. oxalate, 1,2,4,5-benzenetetracarboxylate and the like), and pyromellitic diimidate. The organic lithium salts of the invention have the general formula: Liq[Org(MXn)m], in which Org represents the organic moieties and MXn represents an organic or inorganic boron, aluminum or phosphorous containing Lewis acid.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: May 19, 2009
    Assignee: SKC Power Tech, Inc.
    Inventors: Zhiqiang Xu, Chi-Kyun Park, Zhiwei Zhang, Chai Chul
  • Organic lithium salt electrolytes having enhanced safety for rechargeable batteries and methods of making the same
    Publication number: 20060068295
    Abstract: Organic lithium salts suitable for use in electrolytes for primary or secondary rechargeable batteries include de-localized bulky anions over Lewis acid fragments, typically BF3, and organic moieties. The organic moieties may be, for example, anions derived from fused nitrogen heterocycles (e.g. benzeneimidate, benzitriazolate and the like); multi carboxylates (e.g. oxalate, 1,2,4,5-benzenetetracarboxylate and the like), and pyromellitic diimidate. The organic lithium salts of the invention have the general formula: Liq[Org(MXn)m], in which Org represents the organic moieties and MXn represents an organic or inorganic boron, aluminum or phosphorous containing Lewis acid.
    Type: Application
    Filed: September 29, 2004
    Publication date: March 30, 2006
    Applicant: SKC Power Tech, Inc.
    Inventors: Zhiqiang Xu, Chi-Kyun Park, Zhiwei Zhang, Chai Chul