公开(公告)号：JP2001167796A

公开(公告)日：2001-06-22

申请号：JP2000043227

申请日：2000-02-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIMU KUANMAN ,  RYU KUANSON ,  KAN SONGU ,  ZAN SUNHO

IPC: H01M10/05 ,  H01M10/0565 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a high molecular electrolyte for a lithium secondary battery, which makes penetration amount of electrolyte contained with dissolved lithium salt as well as mechanical strength higher by containing inorganic filler such as silica, and realize rapidly stability of interface resistance to the lithium electrode, and also to provide a method of high polymer electrolyte for lithium secondary buttery in which manufacturing process is simple as there removes use of plasticizer being extracted after molding the high polymer film. SOLUTION: The high molecular electrolyte for lithium secondary battery contains matrix formed from high polymer and inorganic filler, organic solvent electrolyte of lithium salt penetrated into the matrix.

公开(公告)号：JP2002338217A

公开(公告)日：2002-11-27

申请号：JP2001353551

申请日：2001-11-19

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： PARK NAMUGYU ,  CHANG SOON-HO ,  RYU KUANSON ,  PARK YONJUN

IPC: C01B25/37 ,  C01G31/02 ,  H01M4/13 ,  H01M4/136 ,  H01M4/58 ,  H01M10/05 ,  H01M4/02 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a new method for preparing VOPO4 .2H2 O having small sized particles while remarkably reduced reaction time. SOLUTION: The method includes a process for mixing V2 O5 ,H3 PO4 and H2 O with each other in a molar ratio V2 O5 :H3 PO4 :H2 O of 1:(40-50):(500-610), a process for treating the mixed solution with ultrasonic wave, a process for washing the material obtained by ultrasonic treatment and vacuum-filtering, and a process for drying and recovering the material obtained by the filtration.

公开(公告)号：JP2002203541A

公开(公告)日：2002-07-19

申请号：JP2001051104

申请日：2001-02-26

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： PARK NAMUKYU ,  KIMU KUANMAN ,  RYU KUANSON ,  PARK YONJUN ,  CHANG SOON-HO

IPC: C01G31/00 ,  H01M4/02 ,  H01M4/13 ,  H01M4/131 ,  H01M4/137 ,  H01M4/36 ,  H01M4/48 ,  H01M4/485 ,  H01M4/60 ,  H01M10/052 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a new complex oxide which can be used as a substance for positive electrode of the lithium secondary battery that is superior in charge- discharge characteristics, and to provide its manufacturing method. SOLUTION: This complex oxide contains V2O5 xerogel poly-2,5- dimercapto-1,3,4-thiadiazole (PDMcT: poly(2,5-dimercapto-1,3,5-thiadiazole)), and polyaniline (PANI) are inserted between the layers.

公开(公告)号：JP2002190324A

公开(公告)日：2002-07-05

申请号：JP2000403356

申请日：2000-12-28

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIMU KUANMAN ,  RYU KUANSON ,  PARK NAMUGYU ,  PARK YONJIN ,  CHANG SOON-HO

IPC: C08K3/22 ,  B82Y30/00 ,  B82Y99/00 ,  C08L27/16 ,  C08L27/20 ,  H01B13/00 ,  H01M10/05 ,  H01M10/0565 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a polymer electrolyte containing a copolymer of vinylidene fluoride and hexafluoropropylene and a titania nanoparticle, and to provide its manufacturing method. SOLUTION: The polymer electrolyte is produced by lysing the copolymer of vinylidene fluoride and hexafluoropropylene and the nanometer-sized titania grain into a solvent, and then manufacturing a porous polymer membrane to be impregnated in an electrolytic solution.