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US 2019/0058186 A1Published application
Electrode including nanostructures for rechargeable cells
AssigneeAmprius, Inc.
InventorsYi Cui, Song Han, Mark C. Platshon
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Abstract
A lithium ion battery electrode includes silicon nanowires used for insertion of lithium ions and including a conductivity enhancement, the nanowires growth-rooted to the conductive substrate.
Claims20
A lithium ion battery electrode comprising:
- a conductive substrate;
- and
- silicon containing nanowires substrate-rooted to the conductive substrate,
- the silicon containing nanowires having variable cross-sectional dimensions along the length of the silicon containing nanowires and having tapered profiles with wider ends and narrower ends,
- wherein the wider ends are substrate-rooted to the conductive substrates to provide conductive attachment and mechanical support to the silicon containing nanowires with respect to the conductive substrate.
2 more elements
A lithium ion battery comprising:
- a negative electrode comprising a conductive substrate and silicon containing nanowires substrate-rooted to the conductive substrate,
- the silicon containing nanowires having variable cross-sectional dimensions along the length of the silicon containing nanowires and having tapered profiles with wider ends and narrower ends,
- wherein the wider ends are substrate-rooted to the conductive substrates to provide conductive attachment and mechanical support to the silicon containing nanowires with respect to the conductive substrate.
Dependencies are inferred from the claim text.