Carbonaceous electrode material for secondary battery

H - Electricity – 01 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01M 4/58 (2006.01)

Patent

CA 2280622

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 obtained by carbonizing an aromatic condensation polymer formed by condensation of an aromatic compound having a phenolic hydroxy group and an aldehyde. The carbonaceous material is characterized by an atomic ratio H/C between hydrogen atoms and carbon atoms of below 0.1, a carbon dioxide adsorption capacity of at least 10 ml/g, and an X-ray scattering intensity ratio IW/ID of at least 0.25, wherein IW and ID represent scattering intensities as measured in a wet state and a dry state, respectively, at a parameter s = 2.sin.theta./.lambda. of 0.5 nm-1, wherein .theta. denotes a scattering angle and .lambda. denotes a wavelength of X-rays in X-ray small- angle scattering measurement.

Electrode carbonée ayant des capacités améliorées de dopage et de dédopage d'une substance active d'accumulateur, tel que du lithium, et appropriée à un accumulateur du type à solvant non aqueux. Ladite électrode est constituée d'un matériau carboné produit par carbonisation d'un polymère de condensation aromatique formé par condensation d'un composé aromatique ayant un groupe hydroxy phénolique et un aldéhyde. Le matériau carboné se caractérise par un rapport atomique C/H entre les carbones d'hydrogène et de carbone de moins de 0,1, par une capacité d'adsorption du dioxyde de carbone d'au moins 10 ml/g, et par un rapport d'intensité de diffusion I¿W?/I¿D? d'au moins 0,25, I¿W? et I¿D? représentant les intensités de diffusion mesurées respectivement à l'état humide et à l'état sec, selon un paramètre s = 2.sin.theta./.lambda. de 0,5 nm?-1¿, .theta. indiquant un angle de diffusion et .lambda. une longueur d'onde des rayons X dans la mesure de la diffusion à petit angle.¿ ?

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

Rate now

     

Profile ID: LFCA-PAI-O-1459247

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