公开(公告)号：US20150140427A1

公开(公告)日：2015-05-21

申请号：US14542145

申请日：2014-11-14

申请人： Xiang Zhang ,  Jia Zhu ,  Christopher Gladden ,  David Barth

发明人： Xiang Zhang ,  Jia Zhu ,  Christopher Gladden ,  David Barth

IPC分类号： H01M4/38 ,  H01M4/04 ,  C01B33/02

CPC分类号： H01M4/386 ,  C01B33/02 ,  H01M4/134

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.

摘要翻译： 本发明的各种实施方案描述了具有可控孔隙率和厚度的纳米多孔硅（Si）网络薄膜，其通过鲁棒且可扩展的电化学工艺制造，然后从Si晶片释放并转移到柔性和导电的基底。 这些纳米多孔Si网络薄膜用作高性能锂离子电池电极，初始放电容量为2570 mA h g-1，超过1000 mA h g-1，200次循环后无任何电解质添加剂。