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US 2019/0173077 A1Published application
Modified silicon particle electrodes and methods
AssigneeThe Regents of the University of California
InventorsLorenzo Mangolini, Lanlan Zhong
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Abstract
A silicon and tin based micro-structured material and methods are shown. In one example, the silicon and tin based micro-structured material is used as an electrode in a battery, such as a lithium ion battery.
Claims8
A battery, comprising:
- a first electrode, including:
- a number of silicon particles;
- a number of modifying particles having a higher conductivity than silicon, and an electrochemical capacity with respect to lithium of approximately (800 mAh/g) or greater;
- a second electrode;
- and
- an electrolyte in contact with both the first electrode and the second electrode.
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A method of forming a battery electrode, comprising:
- combining a number of silicon particles, a tin precursor, and an organic binder on an electrode substrate to form a coated substrate;
- annealing the coated substrate to form a number of silicon particles, a number of tin particles;
- and
- at least partially converting the organic binder to form carbon particles.
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Dependencies are inferred from the claim text.