Flat, bonded-electrode rechargeable electrochemical cell and...

H - Electricity – 01 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01M 10/40 (2006.01) B29C 65/00 (2006.01) B29C 65/48 (2006.01) B32B 7/10 (2006.01) H01M 2/16 (2006.01) H01M 10/38 (2006.01) H01M 4/62 (2006.01) H01M 10/04 (2006.01)

Patent

CA 2404507

A Li-ion battery cell comprising a polymeric matrix positive electrode layer member, a polymeric matrix negative electrode layer member, and an interposed microporous polyolefin separator layer member is laminated into a unitary, flexible cell structure by means of heat and pressure without necessity of aplied interlayer adhesive. A volatile vehicle solution of a primary plasticizer for the electrode member polymer matrix is applied to the microporous separator member where it is absorbed into the porous structure. Evaporation of the volatile vehicle solvent deposits the plasticizer upon and within the pores of the separator member. During the lamination operation the plasticizer is forced into contact with the electrode member polymer where it softens the polymer into a thermoplastic adhesive in the region of the electrode/separator interface, thereby enabling the electrode polymer alone to form a strong bond to the separator upon cooling.

L'invention porte sur une pile aux ions Li comprenant: une couche à matrice de polymère formant l'électrode positive; une couche à matrice de polymère formant l'électrode négative; et une couche de séparation microporeuse intermédiaire de séparation de polyoléfine. Ces couches sont laminées à chaud et sous pression pour former une structure souple unitaire sans avoir à utiliser d'adhésif entre les couches. A cet effet on applique sur le séparateur microporeux une solution véhicule volatile d'un premier plastifiant qui en s'évaporant dépose ledit plastifiant sur et dans les pores du séparateur. Pendant le laminage, le plastifiant ainsi mis en contact avec le polymère de l'électrode, le ramollit en en faisant un adhésif thermoplastique qui occupe la zone de l'interface électrode/séparateur. L'électrode de polymère forme alors elle-même en se refroidissant une forte liaison avec le séparateur.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Flat, bonded-electrode rechargeable electrochemical cell and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flat, bonded-electrode rechargeable electrochemical cell and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flat, bonded-electrode rechargeable electrochemical cell and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2011963

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.