Carbonaceous electrode material for secondary battery and...

H - Electricity – 01 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01M 4/36 (2006.01) H01M 4/58 (2006.01)

Patent

CA 2207462

A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent-type secondary battery, is constituted by a carbonaceous material having a pore volume of at least 0.55 ml/g of pores having a pore diameter of at most 5 µm as measured by mercury injection method, a potassium content of at most 0.5 wt. % as measured by fluorescent X-ray analysis, and a specific surface area of at most 100 m2/g as measured by nitrogen adsorption BET method. The carbonaceous material is advantageous produced by carbonizing a carbon precursor of plant origin having a potassium content of at most 0.5 wt. % as measured by fluorescent X-ray analysis, in contact with a stream of an inert gas optionally containing a halogen gas at a temperature of 700 - 1500 °C.

Une électrode carbonée à capacités améliorées de dopage et de dédopage d'une substance électromotrice comme le lithium, et adaptée à une batterie secondaire à solvant non aqueux, se composant d'un matériau carboné ayant une porosité d'au moins 0,55 mL/g de pores d'un diamètre maximum de 5 micromètres (mesure au porosimètre à mercure), une teneur maximale en potassium de 0,5 % (en masse mesure par fluorescence des rayons X) et une surface spécifique maximale de 100 m2/g (mesure par la méthode BET d'adsorption de l'azote). Le matériau carboné est produit avantageusement par carbonisation d'un précurseur du carbone d'origine végétale ayant une teneur maximale en potassium de 0,5 % (en masse mesure par fluorescence des rayons X), en contact avec un courant de gaz inerte qui peut contenir un halogène gazeux à une température de 700 - 1500 degrés C.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Carbonaceous electrode material for secondary battery and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbonaceous electrode material for secondary battery and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbonaceous electrode material for secondary battery and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1904845

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.