About 12 results
https://drivepatents.com/patents/1391578 · 10 Jun 2026
An anode material and a battery provided. The anode material includes artificial graphite, and there are pores inside and/or on surface of the artificial graphite. The anode material has an oil absorption value of O mL/100g, a pore volume of V cm3/kg, and ...
https://drivepatents.com/patents/1400028 · 28 Jan 2026
The present invention provides a negative electrode active material including artificial graphite particle, wherein a thermal expansion coefficient measured by a specific method is in a range of 108 × 10/K to 150 × 10/K. The negative electrode active mat...
https://drivepatents.com/patents/1398378 · 27 Nov 2024
Provided is carbonaceous substance-coated graphite particles that exhibit excellent output characteristics when used as a negative electrode material for a lithium ion secondary battery. The carbonaceous substance-coated graphite particles includes: graphi...
https://drivepatents.com/patents/955497 · 18 Nov 2015
A graphite sheet (10) includes: a graphite portion (11) made of a graphite; and at least one ceramic filler (12) provided within the graphite portion, having a substantially spherical shape, and made of a ceramic having a thermal conductivity higher than a...
https://drivepatents.com/patents/972690 · 9 Jul 2014
Disclosed is an anode active material for lithium secondary batteries that includes natural graphite particles consisting of spherical particles of agglomerated graphite sheets, outer surfaces of which are not coated with a carbon-based material, wherein t...
https://drivepatents.com/patents/981558 · 27 Nov 2013
The present invention provides a graphite composite material obtained by mixing graphite material 1 having diversity in the sizes of optical anisotropic structure and optical isotropic structure, the ratio thereof, and crystal direction, and graphite mater...
https://drivepatents.com/patents/987568 · 14 Aug 2013
Provided is a carbon material for negative electrode capable of suppressing capacity degradation due to repeated charge and discharge cycles, storage while being charged or floating charge. A graphite material having lattice distortion for lithium-ion seco...
https://drivepatents.com/patents/998652 · 5 Sep 2012
Disclosed are carbon particles for a negative electrode of a lithium ion secondary battery, the carbon particles having a pore volume of pores having a size of 2 × 10 to 2 × 10 4 Å, of 0.1 ml/g or less with respect to the mass of the carbon particles; h...
https://drivepatents.com/patents/1005263 · 15 Feb 2012
Provided are a graphite material suitable as an electrode material for nonaqueous electrolyte secondary batteries, a carbonaceous material for battery electrodes, and secondary batteries which exhibit excellent charge-discharge cycle characteristics and ex...
https://drivepatents.com/patents/1009224 · 28 Sep 2011
The electrode has an outer zone (A) forming a base of the electrode, and a high- or ultrahigh-pure electrical graphite with different thermal conductivities. An inner zone (B) is arranged in the outer zone and projected from the outer zone. Specific therma...