Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent
1993-11-17
1995-06-27
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
429144, 429218, 429248, 429249, H01M 214
Patent
active
054278724
ABSTRACT:
Dendrites are prevented from shorting a secondary lithium battery by use of a first porous separator such as porous polypropylene adjacent the lithium anode that is unreactive with lithium and a second porous fluoropolymer separator between the cathode and the first separator such as polytetrafluoroethylene that is reactive with lithium. As the tip of a lithium dendrite contacts the second separator, an exothermic reaction occurs locally between the lithium dendrite and the fluoropolymer separator. This results in the prevention of the dendrite propagation to the cathode.
REFERENCES:
patent: 4405694 (1983-09-01), Goebel et al.
patent: 4410608 (1983-10-01), Goebel et al.
patent: 4444854 (1984-04-01), Hooke
patent: 4514474 (1985-04-01), Momyer et al.
patent: 4626481 (1986-12-01), Wilson
patent: 4863815 (1989-09-01), Chang et al.
patent: 4873158 (1989-10-01), Chang et al.
patent: 4897323 (1990-01-01), Hennrich et al.
patent: 5017442 (1991-05-01), Watanabe et al.
patent: 5290644 (1994-03-01), Andrieu
Proc. Power Sources Symposium, (1984) (month n/a) pp. 98-103. An article by Abraham, et al. titled "Electrical Performance of 5 Ampere-Hour Li/TiS.sub.2 Secondary Cells."
Journal of Power Sources, 18 (1986) (month n/a) pp. 127-131. An Article by Shen, et al. titled "Examination of Design Options for 35A h Ambient Temperature Li--TiS.sub.2 Cells."
Halpert Gerald
Huang Chen-Kuo
Shen David H.
Surampudi Subbarao
Jones Thomas H.
Kalafut Stephen
Kusmiss John H.
Miller Guy M.
Nuzzsolillo M.
LandOfFree
Dendrite preventing separator for secondary lithium batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dendrite preventing separator for secondary lithium batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dendrite preventing separator for secondary lithium batteries will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-286165