Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP3777496
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery with lower inner resistance than conventional ones and yet having more excellent collecting structure.
SOLUTION: With the nonaqueous electrolyte secondary battery, at an end of a wound electrode body 4 to its axis direction, a non-coated part where active substance is not yet applied is protruded from a core body making up a positive or a negative electrode. The protruded part is engaged to a collecting mechanism, and is divided into a plurality of ring-shaped areas 4a, 4b and 4c. The collecting mechanism is provided with a round-shaft member 97 fitted into an inner peripheral face of the inner-most-periphery ring-shaped area 4c, spacer pieces 5 disposed between adjoining ring-shaped areas, a pressing piece 51 connected to an outer peripheral face of the outer-most-periphery ring-shaped area 4a, and a screw shaft 52 for pressing the pressing piece 51 toward the round-shaft member 97, which, together with the screw shaft 52, is connected with an end of an electrode terminal 91 protruding into inside a battery can 1.
Inventors:
Hideo Hagino
Atsuhiro Funabashi
Kazunari Okita
Toshiyuki Nohma
Ikuro Yonezu
Atsuhiro Funabashi
Kazunari Okita
Toshiyuki Nohma
Ikuro Yonezu
Application Number:
JP2000067775A
Publication Date:
May 24, 2006
Filing Date:
March 10, 2000
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M10/04; H01M10/05; H01M10/0566; H01M10/0587; H01M50/528; (IPC1-7): H01M10/40; H01M2/06; H01M2/26; H01M2/30; H01M10/04
Domestic Patent References:
| JP11339757A | ||||
| JP2000003701A | ||||
| JP2000040501A | ||||
| JP2000228182A | ||||
| JP2000231913A |
Attorney, Agent or Firm:
Nobuyasu Nishioka