公开(公告)号：US20200255574A1

公开(公告)日：2020-08-13

申请号：US16642899

申请日：2018-07-05

Applicant: ZEON CORPORATION

Inventor： Hidetake ISHII ,  Norikazu YAMAMOTO ,  Yusaku MATSUO

IPC: C08F297/04 ,  H01M4/62

Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode capable of forming an electrode for a non-aqueous secondary battery that can cause a non-aqueous secondary battery to display excellent low-temperature cycle characteristics and low-temperature output characteristics. The binder composition for a non-aqueous secondary battery electrode contains a polymer and a solvent. The polymer is a block copolymer including an aromatic vinyl monomer unit and an aliphatic conjugated diene monomer unit having a carbon number of 5 or more. The amount of the polymer that elutes into electrolyte solution is not less than 1 mass % and not more than 20 mass %.

公开(公告)号：US20200243861A1

公开(公告)日：2020-07-30

申请号：US16633784

申请日：2018-08-23

Applicant: ZEON CORPORATION

Inventor： Norikazu YAMAMOTO ,  Yusaku MATSUO ,  Hidetake ISHII ,  Shunjin AIHARA

IPC: H01M4/62 ,  H01M2/16 ,  H01M4/13 ,  H01M10/0525 ,  C08F297/04

Abstract: Provided is a binder composition for a non-aqueous secondary battery with which it is possible to form a functional layer that can provide a battery component such as an electrode or a separator with a balance of excellent handleability and process adhesiveness. The binder composition for a non-aqueous secondary battery contains: polymer particles containing a block polymer including a block region composed of an aromatic vinyl monomer unit; a water-soluble polymer including a hydrophilic group; and water. The block polymer has a diblock content of not less than 0 mass % and not more than 60 mass %. The water-soluble polymer has a weight-average molecular weight of not less than 15,000 and not more than 500,000.

公开(公告)号：US20200052301A1

公开(公告)日：2020-02-13

申请号：US16486504

申请日：2018-03-01

Applicant: ZEON CORPORATION

Inventor： Kazuki ASAI ,  Norikazu YAMAMOTO

IPC: H01M4/62 ,  H01M4/13 ,  H01M2/16 ,  H01M10/058

Abstract: Provided is a binder composition for non-aqueous secondary battery functional layers comprising a an organic solvent having a boiling point under 1 atm of 30° C. or higher and 100° C. or lower, and a polymer A comprising (meth)acrylonitrile monomer unit and a (meth)acrylic acid ester monomer unit.

公开(公告)号：US20190148732A1

公开(公告)日：2019-05-16

申请号：US16308818

申请日：2017-06-23

Applicant: ZEON CORPORATION

Inventor： Naoki TAKAHASHI ,  Norikazu YAMAMOTO

IPC: H01M4/62 ,  C08L9/00

Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode that can form an electrode that has excellent peel strength and for which metal deposition at the surface thereof after charging and discharging is inhibited. The binder composition contains a polymer A and a polymer B. The polymer A has a THF-insoluble content of 60 mass % or less and the polymer B has a THF-insoluble content of 80 mass % or more.

公开(公告)号：US20190044147A1

公开(公告)日：2019-02-07

申请号：US15757723

申请日：2016-09-07

Applicant: ZEON CORPORATION

Inventor： Norikazu YAMAMOTO

IPC: H01M4/62 ,  H01M4/13 ,  H01M10/0525 ,  C08L53/02 ,  C08L9/06

Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode that enables the display of excellent peel strength and cycle characteristics. The binder composition for a non-aqueous secondary battery electrode contains a particulate polymer A and a particulate polymer B. The particulate polymer A has a volume average particle diameter of at least 0.6 μm and not more than 2.5 μm. The particulate polymer B has a volume average particle diameter of at least 0.01 μm and not more than 0.5 μm. The particulate polymer A has a percentage content of more than 30 mass % and not more than 90 mass % relative to total content of the particulate polymer A and the particulate polymer B.

公开(公告)号：US20170054152A1

公开(公告)日：2017-02-23

申请号：US15306770

申请日：2015-04-27

Applicant: ZEON CORPORATION

Inventor： Norikazu YAMAMOTO

IPC: H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/62 ,  H01M4/628 ,  H01M10/0525

Abstract: Provided is a binder composition for secondary battery electrode-use that can be used to form a low-resistance electrode mixed material layer that enables a secondary battery to exhibit good low-temperature output characteristics and inhibits deposition of lithium dendrites and the like, and that can favorably suppress electrode expansion that is associated with repeated charging and discharging. The binder composition for secondary battery electrode-use contains: a first particulate polymer having a degree of swelling in electrolysis solution of at least 450 mass % and no greater than 700 mass %; a second particulate polymer having a degree of swelling in electrolysis solution of at least 300 mass % and no greater than 400 mass %; and water.

Abstract translation: 本发明提供一种二次电池用电极用粘合剂组合物，其可用于形成低电阻电极混合材料层，使得二次电池能够表现出良好的低温输出特性并抑制锂枝晶等的沉积，并且 可以有利地抑制与重复充放电相关的电极膨胀。 二次电池用电极用粘合剂组合物含有电解溶液中膨胀度为至少450质量％且不大于700质量％的第一粒状聚合物， 在电解液中具有至少300质量％且不大于400质量％的溶胀度的第二颗粒聚合物; 和水。