公开(公告)号：US20220200000A1

公开(公告)日：2022-06-23

申请号：US17593563

申请日：2020-03-17

Applicant: ZEON CORPORATION

Inventor： Maki MESUDA ,  Kenya SONOBE ,  Yasuhiro ISSHIKI

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/36

Abstract: Provided is a new technique related to electrochemical devices that can sufficiently ensure adhesiveness of a functional layer and safety of an electrochemical device while, on the other hand, causing an electrochemical device to display excellent high-temperature storage characteristics. A composite particle for an electrochemical device functional layer includes a core particle containing a melamine compound and a shell polymer that at least partially covers an outer surface of the core particle and that includes at least one selected from the group consisting of a nitrile group, a carboxy group, a hydroxyl group, a sulfo group, an aldehyde group, and an amide group.

公开(公告)号：US20210057747A1

公开(公告)日：2021-02-25

申请号：US16960317

申请日：2019-01-10

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yasuhiro ISSHIKI

IPC: H01M4/62 ,  H01G11/38 ,  H01M10/0525 ,  H01M4/88

Abstract: Provided is an additive for an electrochemical device that can ensure a high level of safety of an electrochemical device. The additive for an electrochemical device is an additive for an electrochemical device that is used in an electrochemical device, for which a temperature at which a volume expansion ratio thereof reaches a factor of 2 or more is higher than 150° C. and lower than 400° C., and in which the content of (A) each element belonging to group 2 of the periodic table is less than 100 mass ppm, the content of (B) each element belonging to group 17 of the periodic table is less than 100 mass ppm, and the content of (C) each element among Cr, Mn, Fe, Co, Ni, Cu, and Zn is less than 5 mass ppm.

公开(公告)号：US20200176782A1

公开(公告)日：2020-06-04

申请号：US16629564

申请日：2018-07-17

Applicant: ZEON CORPORATION

Inventor： Yasuhiro ISSHIKI ,  Kenya SONOBE

IPC: H01M4/80 ,  H01M4/62 ,  H01M4/66

Abstract: Provided is an electrode for an electrochemical device that has excellent peel strength and can ensure a high level of safety of an electrochemical device. The electrode for an electrochemical device includes a current collector and an electrode mixed material layer on the current collector. The electrode mixed material layer contains an electrode active material, a binder, and a foaming agent. The binder is a polymer including a diene monomer unit and/or nitrile group-containing monomer unit, and in which the total proportion constituted by the diene monomer unit and nitrile group-containing monomer unit is 10 mass % to 80 mass %. Volume resistivity RA of a laminate of the electrode mixed material layer and current collector at 25° C. is 0.1 Ω·cm to 200 Ω·cm, and a ratio of volume resistivity RB of the laminate at 350° C. relative to volume resistivity RA of the laminate at 25° C. is 10 or more.

公开(公告)号：US20190273261A1

公开(公告)日：2019-09-05

申请号：US16061426

申请日：2016-12-15

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yasuhiro WAKIZAKA

IPC: H01M4/62 ,  C08F236/10 ,  C08F212/08 ,  C08K5/42 ,  H01M4/587 ,  H01M4/133 ,  H01M10/0525

Abstract: A binder composition from which an electrode for a non-aqueous secondary battery having excellent close adherence and a non-aqueous secondary battery that suppresses metal precipitation onto the electrode during charging and has excellent discharge capacity storage characteristics can be produced is provided. A binder composition for a non-aqueous secondary battery electrode comprises: a particulate polymer; and a surfactant, wherein a volume-average particle diameter of the particulate polymer is 0.01 μm or more and 0.1 μm or less, and a content of the surfactant is 0.1 parts by mass or more and 1.0 parts by mass or less relative to 100 parts by mass of the particulate polymer.

公开(公告)号：US20190006677A1

公开(公告)日：2019-01-03

申请号：US16081135

申请日：2017-03-02

Applicant: ZEON CORPORATION

Inventor： Yusaku MATSUO ,  Masanori SHIBUYA ,  Kenya SONOBE

IPC: H01M4/62 ,  C08F220/56 ,  H01M4/13 ,  H01M10/0525

Abstract: Disclosed is a binder composition for non-aqueous secondary battery electrode which comprises: a water-soluble polymer which comprises an acid group-containing monomer unit; and water, wherein the water-soluble polymer comprises the acid group-containing monomer unit in an amount of 5% to 70% by mass, and wherein the water-soluble polymer comprises water-soluble polymer particles having a radius of gyration of 200 nm or less in an amount of 95% to 100% by mass.