About 75 results
https://drivepatents.com/patents/1072527 · 16 Nov 2005
A subject for the invention is to provide a lithium secondary battery which can be improved in high-output/high-input characteristics based on a reduction in the thickness of an active material layer, has a long life, and is highly safe. The invention rela...
https://drivepatents.com/patents/1074205 · 14 Sep 2005
An object of the invention is to provide a negative electrode for a nonaqueous electrolyte secondary battery having a small surface film resistance and a high negative electrode strength. The present invention relates to a negative electrode for a nonaqueo...
https://drivepatents.com/patents/1075449 · 3 Aug 2005
An object of the invention is to obtain such a lithium secondary battery that has high safety and is small in increase of the resistance in a full charged state. Means for solution of the invention relates to a positive electrode material for a lithium sec...
https://drivepatents.com/patents/1075804 · 20 Jul 2005
A subject for the invention is to provide an electrolyte solution and a secondary battery which are preventd from causing or suffering battery performance deterioration in high-temperature storage or high-temperature trickle charge. The invention relates t...
https://drivepatents.com/patents/1076185 · 6 Jul 2005
An objective of the invention is to suppress a loosening of strands at both ends of a carbonic fiber woven fabric which is generated as a result of a repetitive rolling and unrolling. The present invention is to conduct an anti-loosening treatment of carbo...
https://drivepatents.com/patents/1076386 · 29 Jun 2005
An object of the invention is to provide such an additive for a lithium secondary battery that improves the battery capacity and the initial efficiency of the lithium secondary battery. In the invention, a fullerene derivative having a group having a formu...
https://drivepatents.com/patents/1081261 · 29 Dec 2004
An anode material for lithium secondary cells comprises secondary particles of a lithium transition metal composite oxide including boron and/or bismuth. The atomic ratio of boron and bismuth to the total of metal atoms other than boron and bismuth is 5-70...
https://drivepatents.com/patents/1087688 · 28 Apr 2004
The object of the present invention is to provide a non-aqueous electrolyte solution for secondary batteries, capable of securing safety of the battery in an overcharged state without affecting adversely to battery characteristics such as a low-temperature...
https://drivepatents.com/patents/1088355 · 7 Apr 2004
Lithium secondary cell comprises cell element including a positive electrode, a negative electrode and an electrolyte containing a non-aqueous solvent and a solute, and a variable-shape case which houses the cell element. The difference (Esol(A) - Esol(N))...
https://drivepatents.com/patents/1088373 · 7 Apr 2004
Secondary battery includes an electrode group having a positive electrode, a negative electrode containing a material which absorbs and releases lithium ions, and a separator between these electrodes, and a non-aqueous electrolyte impregnated in the electr...