About 20 results
https://drivepatents.com/patents/1401064 · 27 May 2026
Provided are composite carbon particles capable of obtaining a lithium-ion secondary battery having good cycle characteristics and small electrode expansion. Composite carbon particles including a porous carbon material and a silicon component, the composi...
https://drivepatents.com/patents/1386522 · 20 May 2026
The present invention provides non-graphitizable carbon, a negative electrode for a lithium-ion secondary battery, and a lithium-ion secondary battery having high discharge capacity. The present invention is non-graphitizable carbon wherein a Guinier radiu...
https://drivepatents.com/patents/1386524 · 20 May 2026
An object of the present invention is to provide non-graphitizable carbon, a negative electrode for a lithium-ion secondary battery, and a lithium-ion secondary battery with which high discharge capacity is obtained. In the non-graphitizable carbon of the ...
https://drivepatents.com/patents/1392095 · 15 Apr 2026
A positive electrode according to the present disclosure comprises a sulfur-based material in an amount of 65 wt% or more based on a total 100 wt% of a positive electrode active material layer and has a porosity of 80 vol%, and thus may be used to provide ...
https://drivepatents.com/patents/1400839 · 3 Dec 2025
The present disclosure relates to a porous carbon structure and a manufacturing method therefor. More specifically, the porous carbon structure comprises a core-shell structured MOF, in which a first MOF contained in a core and a second MOF contained in a ...
https://drivepatents.com/patents/1388908 · 6 Aug 2025
A preparation method of soft carbon comprises heating heavy oil to raw coke under a condition of 480°C-550°C, heating the raw coke to 850°C-900°C at a first heating rate of 3°C/min to 5°C/min and holding the temperature for 4 hours or more to obtain ...
https://drivepatents.com/patents/969453 · 1 Oct 2014
There is provided a negative-electrode material for rechargeable batteries with a nonaqueous electrolyte which have a high charge/discharge capacity and excellent rate characteristics. The negative-electrode material for rechargeable batteries with a nonaq...
https://drivepatents.com/patents/972512 · 16 Jul 2014
A carbon material for a lithium ion secondary battery according to the present invention is a carbon material for a lithium ion secondary battery. The carbon material for the lithium ion secondary battery contains a graphite as a major component of the car...
https://drivepatents.com/patents/982231 · 6 Nov 2013
A composite material of carbon-coated graphene oxide, its preparation method and application are provided. The method for preparing the composite material comprises the following steps: obtaining graphene oxide; mixing the said graphene oxide and the sourc...
https://drivepatents.com/patents/994680 · 26 Dec 2012
A carbon-based material having a FWHM ranging from 2.5° to 6.0° at 2θ ranging from 20° to 30°in an XRD pattern using CuKα ray and a peak area ratio ranging from 1,0 to 100.0 between a peak at 2θ ranging from 20° to 30° and a peak at 2θ ranging fr...