公开(公告)号：US10361434B2

公开(公告)日：2019-07-23

申请号：US15582098

申请日：2017-04-28

Applicant: Mitsubishi Chemical Corporation

Inventor： Haruki Okada ,  Mitsufumi Nodono ,  Hikaru Momose ,  Fumino Momose ,  Fumiko Fujie ,  Akikazu Matsumoto ,  Daisuke Fujikawa ,  Ayako Shimonaka ,  Akihiro Ishii

IPC: H01M4/62 ,  C08F26/02 ,  H01M4/04 ,  H01M4/525 ,  H01M4/587

Abstract: A binder resin for a nonaqueous secondary battery electrode of the invention satisfies Is≥30 (Is indicates a sum of scattering intensities observed in a particle size range of from 1 to 100 nm) when a solution is formed by dissolving the binder resin in water at a concentration of 5% by mass and particle size distribution is measured by a dynamic light scattering method at 25° C. The binder resin contains a polymer (B) having a structural unit represented by the following Formula (11) and a specific structural unit. The binder resin also contains a polymer (α) having a specific structural unit and a structural unit represented by the following Formula (22), and/or a mixture of a polymer (β1) having a specific structural unit and a polymer (β2) having a structural unit represented by the following Formula (22).

公开(公告)号：US10446850B2

公开(公告)日：2019-10-15

申请号：US14371115

申请日：2013-01-11

Applicant: Mitsubishi Chemical Corporation

Inventor： Fumino Momose ,  Haruki Okada ,  Ayako Shimonaka ,  Mitsufumi Nodono ,  Daisuke Fujikawa ,  Hikaru Momose ,  Akihiro Ishii

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M10/0525 ,  H01M4/02

Abstract: A binder resin composition for secondary battery electrodes is described as containing a polymer (A) that has a structural unit represented by general formula (1) and a water-insoluble particulate polymer (B-1) and/or a water-soluble polymer (B-2) where (A), (B-1) and (B-2) are defined as described. A slurry for secondary battery electrodes contains the binder resin composition, an active material and a solvent. An electrode for secondary batteries is provided with a collector and an electrode layer that is arranged on the collector, where the electrode layer contains an active material and the binder resin composition. Alternatively, the electrode layer is obtained by applying the slurry for secondary battery electrodes to the collector, and drying the slurry thereon.