About 46 results
https://drivepatents.com/patents/1068059 · 26 Apr 2006
A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non...
https://drivepatents.com/patents/1068409 · 12 Apr 2006
Disclosed is an acid-base mixture composed of a base component and an acid component, wherein at least one of the base component and the acid component contains at least two compounds, and the base component contains at least one compound of formula (1): w...
https://drivepatents.com/patents/1077266 · 8 Jun 2005
A lithium secondary battery comprising a positive electrode, a negative electrode of artificial graphite or natural graphite and a nonaqueous electrolytic solution having an electrolyte dissolved in a nonaqueous solvent, wherein 0.1 to 20 wt.% of a cyclohe...
https://drivepatents.com/patents/1078984 · 30 Mar 2005
An object of the present invention is to provide a humidifying apparatus capable of improving the humidification efficiency while lowering the pressure loss of gas even when a low-pressure gas is used, and is suitably usable for fuel cells. The present inv...
https://drivepatents.com/patents/1079324 · 16 Mar 2005
A polymer electrolyte membrane comprising a microporous polymer membrane having pores penetrating through the opposite sides thereof. The microporous polymer membrane holds a mixture of a polymer and a molten salt at a weight ratio of 1/99 to 99/1 and/or a...
https://drivepatents.com/patents/1080733 · 19 Jan 2005
1. A non-aqueous electrolytic solution comprising an electrolytic salt in a non-aqueous solvent, which further contains a pentafluorophenoxy compound having the formula (I): in which R represents a substituting group such as an alkylcarbonyl group, an alko...
https://drivepatents.com/patents/1081943 · 1 Dec 2004
A corrugated polyamide tube comprises a corrugated outer layer (a) of polyamide resin, and a flat inner tube layer (b) of polyetheramide elastomer, where (b) is fixed to (a) at its bottom portion.
https://drivepatents.com/patents/1084641 · 25 Aug 2004
An inexpensive and durable polymer electrolyte composition exhibiting high ionic conductivity even in the absence of water or a solvent, characterized by comprising a molten salt and an aromatic polymer having a carbonyl bond and/or a sulfonyl bond in the ...
https://drivepatents.com/patents/1084884 · 18 Aug 2004
A polymer electrolyte solution useful in the fabrication of solid polymer electrolyte fuel cell electrodes, characterized by comprising a solvent containing a hydrophilic and high-boiling polar solvent, preferably a mixed solvent mainly comprising the pola...
https://drivepatents.com/patents/1089378 · 3 Mar 2004
A polyelectrolyte for a solid polymeric fuel cell comprising an aromatic polyether sulfone block copolymer comprising a hydrophilic segment containing sulfonic acid groups and a hydrophobic segment having no sulfonic acid group at a hydrophilic segment wei...