About 52 results
https://drivepatents.com/patents/974745 · 21 May 2014
It is an object of the present invention to provide an oxygen reducing catalyst having high catalytic activity and high durability using a transition metal (such as titanium); and a method for producing a fuel cell electrode catalyst using the oxygen reduc...
https://drivepatents.com/patents/975020 · 14 May 2014
This invention related to an electrode for lithium secondary batteries, which enables high-rate charging and discharging and is capable of maintaining high battery capacity retention ratio even under large charge and discharge current conditions; a lithium...
https://drivepatents.com/patents/975847 · 23 Apr 2014
A fuel cell electrode catalyst is provided which includes, at least, M1 that is at least one element selected from 3 to 7 group transition metal elements; M2 that is at least one element selected from iron group elements; M3 that is at least one element se...
https://drivepatents.com/patents/976413 · 9 Apr 2014
Provided is a method for manufacturing a fuel cell separator that exhibits excellent mechanical characteristics, electrical conductivity, and dimensional precision. The method includes a step wherein at least one of each of the following are layered togeth...
https://drivepatents.com/patents/977798 · 5 Mar 2014
A secondary battery which includes a positive electrode and a negative electrode, wherein the negative electrode has a negative electrode collector and a negative electrode active material layer, and the negative electrode collector has a base material whi...
https://drivepatents.com/patents/977971 · 26 Feb 2014
Provided are carbon fibers with low metal ion elution amount without subjecting to high-temperature heat treatment, in which the metal ion may be sometimes precipitated on an electrode of electrochemical devices such as batteries and capacitors to cause sh...
https://drivepatents.com/patents/980004 · 8 Jan 2014
The present invention relates to a nonaqueous electrolytic solution for a secondary battery which solution comprises methyl difluoroacetate as an additive. It is sometimes hard to prepare batteries having good charge-discharge properties by the use of an e...
https://drivepatents.com/patents/979906 · 8 Jan 2014
An object of the present invention is to provide composite carbon fibers in which multiwalled carbon nanotubes are homogeneously dispersed between graphitized carbon nanofibers and near the surface of the graphitized carbon nanofibers, the composite carbon...
https://drivepatents.com/patents/979900 · 8 Jan 2014
An object of the present invention is to provide a method for producing composite carbon fibers in which two or more carbon fibers are dispersed in a nearly homogenous state, the composite carbon fibers capable of being easily dispersed in a matrix such as...
https://drivepatents.com/patents/980242 · 1 Jan 2014
[Problem] To provide a method for producing a fuel cell electrode catalyst having high catalytic activity using titanium or the like through heat treatment at comparatively low temperature. [Solution] A method for producing a fuel cell electrode catalyst, ...