Nanoporous Silicon Network Thin Films as Anodes for Lithium Ion Batteries

摘要

Various embodiments of the invention describe nanoporous silicon (Si) network thin films with controllable porosity and thickness that are fabricated by a robust and scalable electrochemical process, and then released from Si wafers and transferred to flexible and conductive substrates. These nanoporous Si network thin films serve as high performance Li-ion battery electrodes, with an initial discharge capacity of 2570 mA h g−1, above 1000 mA h g−1 after 200 cycles without any electrolyte additives.

主权项

1. A composition of matter comprising:
a nanoporous silicon (Si) network thin film.