公开(公告)号：US20240178399A1

公开(公告)日：2024-05-30

申请号：US18412161

申请日：2024-01-12

Applicant: DAIKIN AMERICA, INC. ,  DAIKIN INDUSTRIES, LTD.

Inventor： Alec FALZONE ,  Emily Grumbles ,  Wade Simpson ,  Joseph Sunstrom ,  Ronald Hendershot ,  Taku Yamanaka ,  Taketo Kato ,  Takaya Yamada ,  Junpei Terada ,  Masato Tokuda ,  Kenta Nishimura

IPC: H01M4/62 ,  C08J3/20 ,  C08L27/18 ,  H01M4/02

CPC classification number: H01M4/623 ,  C08J3/203 ,  C08L27/18 ,  C08J2327/18 ,  C08J2427/16 ,  C08L2203/20 ,  H01M2004/021 ,  H01M4/625

Abstract: Composite binder materials for energy storage applications are disclosed. The composite binder materials include a fluoropolymer, such as polytetrafluoroethylene (PTFE), integrated with a conductive additive and a low-melting point thermoplastic. Methods of making the composite binder materials are also disclosed. The methods include providing an emulsion of the fluoropolymer, mixing the low-melting point thermoplastic and the particulate conductive additive into the emulsion of the fluoropolymer to form a mixture, and coagulating the mixture to produce a coagulum including the composite binder material. The disclosure also provides a binder powder for an electrochemical device capable of providing an electrode mixture sheet having excellent uniformity of tensile strength. The disclosure relates to a binder powder for an electrochemical device, containing a non-fibrillated fibrillatable resin and a thermoplastic polymer.