公开(公告)号：US20240304815A1

公开(公告)日：2024-09-12

申请号：US18262574

申请日：2022-01-24

Applicant: KRATON CORPORATION

Inventor： Jason Tian ,  Xiangyun Wei ,  John Flood ,  Vijay Mhetar

IPC: H01M4/62 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/583

CPC classification number: H01M4/622 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/583

Abstract: An electrode binder for use with rechargeable batteries is disclosed. In embodiments, the electrode binder comprises a styrenic block copolymer (SBC) for use with an electrode active material, such as Si, Si alloys, Si compounds, Si composites, carbon black, or graphite in an amount of at least 20 wt. %. The SBC can be unsaturated (USBC) or hydrogenated (HSBC), or functionalized, wherein functionality includes maleation, epoxidation, silanation, carboxylic acid/salt, quaternary ammonium salt, sulfonation and others. In embodiments, the electrode binder is selected from isoprene rubber (IR), silicone-containing block copolymer, and an electronically conductive block copolymer containing a block that is unhydrogenated CHD (cyclohexadiene) block.