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US 6,143,448 AGranted
Electrode materials having carbon particles with nano-sized inclusions therewithin and an associated electrolytic and fabrication process
AssigneeMitsubishi Chemical Corporation
InventorsDenis G. Fauteux, Jie Shi, Wlodek T. Krawiec
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Abstract
An electrode for use in an electrolytic cell and an associated process, wherein the electrode includes a current collecting substrate, an electrode active material having at least one component including inclusions no greater than one micron within a carbon particle. The carbon particle has a dibutyl phthalate (DBP) absorption rate preferably within a range of approximately 52 ml/100 g to approximately 400 ml/100 g.
Claims31
An electrode for use in an electrolytic cell comprising:
- a current collecting substrate;
- an electrode active material having at least one component including at least one inclusion no greater than one micron in size, within a carbon particle, wherein the carbon particle has a DBP adsorption rate of not less than 50 ml/100 g, and preferably within a range of approximately 52 ml/100 g to approximately 400 ml/100 g;
- and
- means associated with the at least one component for precluding mechanical degradation of the component and, in turn, loss of electrical contact therebetween.
1 more element
An electrode for use in an electrolytic cell comprising:
- a current collecting substrate;
- an electrode active material having at least one component including at least one inclusion no greater than one micron in size, within a carbon particle, wherein the carbon particle has:
- a DBP adsorption rate of not less than 50 ml/100 g, and preferably within a range of approximately 52 ml/100 g to approximately 400 ml/100 g;
- a SSA of not less than 200 M.sup.2 /g, and preferably in the range of approximately 250 M.sup.2 /g to approximately 1000 M.sup.2 /g;
- a mean particle size no larger than 100 nanometers and preferably in the range of approximately 10 nanometers to approximately 50 nanometers, and the at least one component is coated with a polymeric carbon precursor containing at least 5% by weight of carbon and preferably in the range of approximately 5% to approximately 32%, and more preferably in the range of approximately 9% to approximately 18%.
2 more elements
An electrolytic cell comprising:
- an electrolyte;
- a first electrode and a second electrode, wherein at least one of the first and second electrodes comprises:
- a current collecting substrate;
- an electrode active material having at least one component including at least one inclusion no greater than one micron within a carbon particle, wherein the carbon particle has:
- a DBP adsorption rate of not less than 50 ml/100 g, and preferably within a range of approximately 52 ml/100 g to approximately 400 ml/100 g;
- a SSA of not less than 200 M.sup.2 /g, and preferably in the range of approximately 250 M.sup.2 /g to approximately 1000 M.sup.2 /g;
- a mean particle size no larger than 100 nanometers and preferably in the range of approximately 10 nanometers to approximately 50 nanometers;
- and the at least one component is coated with a polymeric carbon precursor containing at least 5% by weight of carbon and preferably in the range of approximately 5% to approximately 32%, and more preferably in the range of approximately 9% to approximately 18%.
5 more elements
An electrolytic cell comprising:
- an electrolyte;
- a first electrode and a second electrode, wherein at least one of the first and second electrodes comprises:
- a current collecting substrate;
- and
- an electrode active material having at least one component including at least one inclusion no greater than one micron within a carbon particle, wherein the electrolytic cell has a third cycle coulombic efficiency of at least 88% and preferably in the range of approximately 88% to approximately 93%, and a fifth cycle coulombic efficiency of at least 89% and preferably in the range of approximately 88% to approximately 94%.
2 more elements
Dependencies are inferred from the claim text.