公开(公告)号：US20200075934A1

公开(公告)日：2020-03-05

申请号：US16609332

申请日：2018-05-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tianyu Wu ,  Mark J. Pellerite ,  Kevin W. Eberman ,  Xiaohua Ma ,  Li Liu

IPC: H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M4/60 ,  H01M4/137 ,  H01M4/1399 ,  H01M4/04

Abstract: A negative electrode composition includes a silicon containing material and a crosslinked polymer containing coating surrounding at least a portion of the silicon containing material. The crosslinked polymer containing coating comprises a (co)polymer derived from polymerization of one or more vinylic monomers comprising a carboxyl or carboxylate group.

公开(公告)号：US20160111718A1

公开(公告)日：2016-04-21

申请号：US14893594

申请日：2014-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Egbert F Figgemeier ,  Vincent J Chevrier ,  Dinh Ba Le ,  Li Liu ,  Jesse D Lund

IPC: H01M4/38 ,  H01M4/1395 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/386 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/621 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30

Abstract: An electrode composition is disclosed that includes a silicon alloy containing silicon, iron and optionally carbon. The silicon alloy is capable of undergoing lithiation and delithiation. The electrode composition also includes graphitic carbon, a binder, and a conductive additive containing carbon nanotubes. Such an electrode composition may be used in a negative electrode for an electrochemical cell that also contains a positive electrode and an electrolyte. Also disclosed are batteries containing such electrochemical cells and methods of making electrochemical cells using the electrode composition.

Abstract translation: 公开了一种电极组合物，其包括含有硅，铁和任选的碳的硅合金。 硅合金能够进行锂化和脱锂。 电极组合物还包括石墨碳，粘合剂和含有碳纳米管的导电添加剂。 这种电极组合物可以用于也含有正极和电解质的电化学电池的负极。 还公开了包含这种电化学电池的电池和使用电极组合物制造电化学电池的方法。