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Methods for making anodes for lithium ion batteries

United States Patent

May 26, 2015
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Methods for making composite anodes, such as macroporous composite anodes, are disclosed. Embodiments of the methods may include forming a tape from a slurry including a substrate metal precursor, an anode active material, a pore-forming agent, a binder, and a solvent. A laminated structure may be prepared from the tape and sintered to produce a porous structure, such as a macroporous structure. The macroporous structure may be heated to reduce a substrate metal precursor and/or anode active material. Macroporous composite anodes formed by some embodiments of the disclosed methods comprise a porous metal and an anode active material, wherein the anode active material is both externally and internally incorporated throughout and on the surface of the macroporous structure.
Xu; Wu (Richland, WA), Canfield; Nathan L. (Richland, WA), Zhang; Ji-Guang (Richland, WA), Liu; Wei (Richland, WA), Xiao; Jie (Richland, WA), Wang; Deyu (Richland, WA), Yang; Z. Gary (Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 621,410
November 18, 2009
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT This invention was made with government support under DE-AC05-76RL01830 awarded by the U.S. Department of Energy. The government has certain rights in the invention.