Patents Assigned to Kokam Engineering Co., Ltd.
  • Patent number: 7500304
    Abstract: An packing apparatus for an automated manufacturing system of a secondary lithium battery is disclosed.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: March 10, 2009
    Assignee: Kokam Engineering Co., Ltd.
    Inventor: Ji-Jun Hong
  • Patent number: 6589300
    Abstract: The present invention relates to a method for producing a lithium secondary battery and more particularly, to a method for producing a lithium secondary battery comprising steps of unwinding a separation film for insulating electrodes by a roller, simultaneously coating an adhesive by an air injector on both surfaces of the separation film at regions where cathode plates and anode plates are to be attached to the separation film, simultaneously bonding the cathode plates and the anode plates respectively on the surfaces of the separation film while allowing the electrode plates on each surface of the separation film to be uniformly spaced apart from one another, laminating the bonded cathode plates and anode plates, and laminating the separation film bonded with the cathode plates and the anode plates so that the cathode plates and the anode plates are arranged alternately. According to the present invention, a lithium secondary battery can be made readily and efficiently.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: July 8, 2003
    Assignee: Kokam Engineering Co., Ltd.
    Inventor: Ji Jun Hong
  • Patent number: 6423449
    Abstract: The present invention relates to a lithium secondary cell and a method of fabricating the same. The lithium secondary cell; a plurality of cathode plates having a desired size and adhered on one surface of the separator film while being uniformly spaced apart from one another; a plurality of anode plates having a desired size and adhered on the other surface of the separator film at spaced positions corresponding to the cathode plates; and the separator film attached with the anode plates and the cathode plates being repeatedly folded such that the anode plates and the cathode plates are arranged in an alternating fashion. Thus, the lithium secondary cell has improved performance and particularly safety by preventing a firing caused by high current and excessive voltage charged, while having various shapes and sizes, and a desired capacity and achieving a simplified fabrication.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 23, 2002
    Assignee: Kokam Engineering Co., Ltd.
    Inventor: Ji Jun Hong