About 39 results
https://drivepatents.com/patents/979413 · 22 Jan 2014
An accumulator device which provides a high energy density and high output power is provided. The accumulator device (D) includes a positive electrode in which a positive electrode layer (A) is formed, a negative electrode in which a negative electrode lay...
https://drivepatents.com/patents/979980 · 8 Jan 2014
Provided is a lithium ion capacitor having a low internal resistance, a high energy density, and a high capacity retention rate. The lithium ion capacitor includes a positive electrode having a positive electrode active material layer formed on a roughened...
https://drivepatents.com/patents/980331 · 1 Jan 2014
The object of an exemplary embodiment of the invention is to provide a separator for an electric storage device which has small heat shrinkage in a high-temperature environment, and in which the increase of the battery temperature can be suppressed. An exe...
https://drivepatents.com/patents/980253 · 1 Jan 2014
A cathode foil for a solid electrolytic capacitor is designed to increase capacitance, reduce ESR and leakage current, enhance heat resistance, and reduce production costs, while enhancing a power density, realizing rapid charging-discharging, and improvin...
https://drivepatents.com/patents/988113 · 31 Jul 2013
An electrochemical capacitor that is resistant to vibration is provided. A positive current collecting member 39 is welded to an unapplied portion 25 of a positive electrode 9 included in a wound electrode group 5. An outer peripheral portion 40 of the pos...
https://drivepatents.com/patents/989145 · 3 Jul 2013
Provided is a negative-electrode material powder for a lithium-ion secondary battery including a conductive carbon film on the surface of a lower silicon oxide powder, in which the total content of tar components measured by TPD-MS is not less than 1 ppm b...
https://drivepatents.com/patents/990374 · 29 May 2013
A negative electrode material powder for a lithium ion secondary battery having a conductive carbon film on the surface of a lower-silicon-oxide powder; wherein a specific surface area in BET measurement ranges from more than 0.3 m/g to 40 m/g, and no SiC ...
https://drivepatents.com/patents/991615 · 17 Apr 2013
Provided is a negative-electrode material powder used for a lithium-ion secondary battery having a large discharge capacity and sufficient cycle characteristics as being durable in use. The powder for the battery includes a conductive carbon film on a lowe...
https://drivepatents.com/patents/992537 · 6 Mar 2013
An object of the present invention is to provide a material for an electrolytic solution having improved ionic conductivity and, showing excellent in low temperature property, being stable with time, and being electrochemically stable at a high potential, ...
https://drivepatents.com/patents/994599 · 2 Jan 2013
A manufacturing method for a long-lived negative electrode and an organic hybrid type supercapacitor battery adopting the same. The manufacturing method for the negative electrode includes the following steps: mixing materials, which includes mixing a lith...