About 17 results
https://drivepatents.com/patents/1072863 · 2 Nov 2005
A battery separator comprising: a microporous polyolefin film having from 0.1% to 50% by weight of a block copolymer including a polyetheresteramide monomer. In this battery separator the polyolefin is selected from the group consisting of: polyethylene, p...
https://drivepatents.com/patents/1073927 · 21 Sep 2005
The battery separator for a battery having a zinc electrode, includes a microporous membrane and a coating on at least one surface of the microporous membrane. The coating includes a mixture of 25-40 weight % polymer and 60-75 weight % surfactant combinati...
https://drivepatents.com/patents/1074384 · 7 Sep 2005
The invention is a method for preventing short circuiting in a lithium ion battery. The battery has an anode made of intercalation compound, a cathode made of an intercalation compound, and a separator having a thickness of 25 microns or less sandwiched be...
https://drivepatents.com/patents/1079976 · 16 Feb 2005
The battery separator for a lithium battery is made from a nonwoven flat sheet material having high temperature melt integrity, a microporous membrane having low temperature shutdown properties, and an adhesive bonding the nonwoven flat sheet to the microp...
https://drivepatents.com/patents/1080107 · 9 Feb 2005
A battery separator comprises a multi-layered film, individual layers of said film having been bonded together by heat and pressure, having a peel strength of greater than or equal to 40 grams per inch (1.6 g/mm) and a thickness of ≤ 25 microns. A method...
https://drivepatents.com/patents/1081616 · 15 Dec 2004
A lithium ion rechargeable battery comprises: a negative electrode adapted to give up electrons during discharge, a positive electrode adapted to gain electrons during discharge, a microporous separator sandwiched between said positive electrode and said n...
https://drivepatents.com/patents/1081992 · 1 Dec 2004
A battery separator comprises micro porous membrane and coating on it. The coating is made of mixture containing gel forming polymer, and two solvents. The first solvent is more volatile than the second solvent. The second solvent is used to form pores in ...
https://drivepatents.com/patents/1086671 · 9 Jun 2004
A new proton electrolyte membrane (PEM) and a fuel cell using that PEM are disclosed. The PEM comprises a polymer matrix and an ionically conductive ceramic material adapted to create a superconductive interface, the ceramic material being uniformly disper...
https://drivepatents.com/patents/1087431 · 12 May 2004
The present invention is directed to a battery separator. The battery separator comprises a microporous film having a first portion and a second portion. The first portion is bonded to the second portion. The bond has a strength greater than 5 g/in. The fi...
https://drivepatents.com/patents/1087385 · 6 May 2004
A battery separator for a lithium-ion secondary battery is a microporous membrane with an adjuvant. The microporous membrane is made of a thermoplastic, and has a thickness of 25 µm or less. The adjuvant, in an effective amount, is mixed into the membrane...