Graphite-carbohydrate active material particles with carbonized carbohydrates
First Claim
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1. A method for making composite anode material comprising:
- milling graphite particles with carbohydrate particles to yield graphite-carbohydrate particles,milling the graphite-carbohydrate particles with anode material particles having a native oxide layer, to form a graphite-carbohydrate layer over at least part of a surface of the anode material particles, andcarbonizing the milled anode material particles to form composite anode material particles which are de-oxidized and have at least a partial composite porous carbon-graphite coating forming an at least partial porous graphite shell over the anode material particles.
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Abstract
Methods of making anode active materials include milling graphite particles with carbohydrate particles to yield graphite-carbohydrate particles, milling the particles with anode material and carbonizing to form composite anode material particles. The anode active materials thus producted are provided with an at least partially porous carbon-graphite coating with both electronic and ionic conductivity.
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Citations
16 Claims
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1. A method for making composite anode material comprising:
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milling graphite particles with carbohydrate particles to yield graphite-carbohydrate particles, milling the graphite-carbohydrate particles with anode material particles having a native oxide layer, to form a graphite-carbohydrate layer over at least part of a surface of the anode material particles, and carbonizing the milled anode material particles to form composite anode material particles which are de-oxidized and have at least a partial composite porous carbon-graphite coating forming an at least partial porous graphite shell over the anode material particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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