Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Metal Working Lithium-secondary-battery

 Implantable medical device having flat electrolytic capacitor with cathode/case electrical connections
The present invention provides various cathode connections with a case of a case negative ...


 Implantable medical device having flat electrolytic capacitor formed with nonthrough-etched and through-hole punctured anode sheets
The present invention provides for anode layers of electrolytic capacitors that minimize ESR and ...


 High-energy capacitors for implantable defibrillators
To address these and other needs, the present inventors devised a new foil structure which combines ...


 Method of making a multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes
OF THE INVENTION The following description of the presently contemplated best mode of practicing ...


 System and method for detection of pacing pulses within ECG signals
It is a primary object of the present invention to provide a system and method for detecting pacing ...


 Method for interconnecting anodes and cathodes in a flat capacitor
The following detailed description, which references and incorporates the figures, describes and ...


 High-energy capacitors for implantable defibrillators
To address these and other needs, the present inventors devised a new foil structure which combines ...


 Method of making a multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes
OF THE INVENTION The following description of the presently contemplated best mode of practicing ...


 Implantable heart monitors having flat capacitors with curved profiles
OF THE EMBODIMENTS The following detailed description, which references and incorporates the above-...


 Flat capacitor having staked foils and edge-connected connection members
The following detailed description, which references and incorporates the figures, describes and ...


 Lithium secondary battery

Details
Inventors: Kurokawa, Teruhisa; Nemoto, Hiroshi;
Assignee: NGK Insulators, Ltd. (JP)
Primary Examiner: Gorgos; Kathryn
Assistant Examiner: Nicolas; Wesley A.
Attorney, Agent or Firm:

A lithium secondary battery includes an electricity generating portion in which positive electrode 60 and negative electrode 61 form a laminate through separator films 62 made of porous polymer so that the positive electrode 60 and the negative electrode 61 do not come in direct contact with each other, leads 65, 77 which are respectively connected to plural portions of the positive electrode 60 and the negative electrode 61 to make electricity collection, and a low melting point alloy member 76 as a current break mechanism being inserted in a current path of the inside of the battery, which is melted to break the current path when the temperature of the battery is raised over a predetermined temperature.

DETAILED DESCRIPTION The present invention has been made in view of the above-described problems to be solved, and an object of the present invention is therefore to provide a lithium secondary battery having an electricity generating portion in which negative electrode and positive electrode form a laminate through separator films made of porous polymer in such a manner that the negative electrode and the positive electrode do not come in direct contact with each other, the lithium secondary battery being characterized in that leads are connected to plural portions of the positive electrode to make electricity collection from the positive electrode, and leads are connected to plural portions of the negative electrode to make electricity collection from the negative electrode.
As the separator film formned of porous polymer used for the lithium secondary battery of the present invention, it is preferable to use a three-layer structure in which a polyethylene film having micropores is sandwiched between polyproplene films having micropores.
In addition, in the lithium secondary battery of the present invention, one of an external terminal electrically connected to the positive electrode and an external terminal electrically connected to the negative electrode is electrically connected to the corresponding electrode of the electricity generating portion through a metal battery case as a part of a current path, and the other external terminal is attached to a part of an insulating plate and is insulated from the battery case while being electrically connected to the corresponding electrode of the electricity generating portion to form a current path.
It is preferable to mount a current break mechanism such that a low melting point alloy member having a melting point of from 50.
degree.
C.
to 130.
degree.
C.
is inserted in the current path for connecting the external terminal provided on the insulating plate to the electricity generating portion, and when the low melting point alloy member is heated up to the melting point, the low melting point alloy member is melted to break the current path


Related patents
  Implantable medical device having flat electrolytic capacitor with liquid electrolyte fill tube
The present invention has certain objects. That is, the present invention provides solutions to many problems existing in the prior art respecting flat electrolytic ...
  Method of making an hermetically sealed implantable medical device having a vacuum-treated liquid electrolyte-filled flat electrolytic capacitor
The present invention has certain objects. That is, the present invention provides solutions to many problems existing in the prior art respecting flat electrolytic ...
  Welding power supply for pulsed spray welding
These and other limitations in the prior art have been overcome by the present invention which, according to one embodiment, is an arc welding machine for providing a ...
  Battery pack
It is an object of the present invention to provide a battery pack comprising a container which is reduced in wall thickness while ensuring a required strength thereof. I...
  Extractable implantable medical lead
The lead disclosed in the present application is particularly designed to reduce problems associated with extraction after implant. In order to accomplish this goal, the ...
  Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same
One object of the present invention is to provide a novel electrode material to be used to produce electrodes of electrochemical capacitors, which can provide capacitors ...
  Capacitor with thermosealed polymeric case for implantable medical device
The disclosed embodiment overcomes the limitations of the prior art by providing an electrolytic capacitor with a polymeric housing in the form of a pocket defining a ...
  Implantable medical device having flat electrolytic capacitor with consolidated electrode tabs and corresponding feedthroughs
The present invention has certain objects. That is, the present invention provides solutions to many problems existing in the prior art respecting flat electrolytic ...
  Apparatus for removing an insulating layer from a portion of a conductor
Oour invention relates to an apparatus and technique for stripping an insulating coating from a conductor without damaging the conductor, and for selectively stripping ...
  Capacitor structures
Integrated circuitry capacitors and methods of forming the same are described. In accordance with one implementation, a capacitor plate is formed and a conductive layer ...

0.014

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved