公开(公告)号：US20170069913A1

公开(公告)日：2017-03-09

申请号：US15122673

申请日：2015-03-03

Applicant: OSAKA SODA CO., LTD.

Inventor： Tomoyuki YANO ,  Miwa NAKAMURA ,  Takashi MATSUO ,  Yasushi MIKI ,  Katsuhito MIURA

IPC: H01M4/62 ,  H01G9/042 ,  H01M10/0525 ,  C08F220/18 ,  C08F220/28

CPC classification number: H01M4/622 ,  C08F220/14 ,  C08F220/18 ,  C08F220/28 ,  C08F290/06 ,  C08F2220/1825 ,  C08F2220/286 ,  C08F2220/287 ,  H01G9/042 ,  H01M10/052 ,  H01M10/0525 ,  C08F2222/1026 ,  C08F2216/1425 ,  C08F220/06 ,  C08F2220/1858 ,  C08F218/08 ,  C08F2222/1013

Abstract: Provided is a binder for battery electrodes which includes a polymer including: structural units (1) derived from a (meth)acrylate monomer (A) having a hydroxyl group; structural units (2) derived from a polyfunctional (meth)acrylate monomer (B); and structural units (3) derived from a reactive surfactant (C). This binder is used to prepare electrodes, and produce batteries such as lithium ion secondary batteries. Provided are: an aqueous binder which has a low environmental impact, exhibits excellent binding properties, and, notably, does not cause oxidation degradation under an electrode environment; and an electrode and a battery which use said binder.

Abstract translation: 本发明提供一种电池用电极用粘合剂，其包括：具有来自具有羟基的（甲基）丙烯酸酯单体（A）的结构单元（1） 衍生自多官能（甲基）丙烯酸酯单体（B）的结构单元（2）; 和衍生自反应性表面活性剂（C）的结构单元（3）。 该粘合剂用于制备电极，并且生产诸如锂离子二次电池的电池。 提供：具有低环境影响的水性粘合剂，显示出优异的粘结性，特别是在电极环境下不会引起氧化降解; 以及使用所述粘合剂的电极和电池。

公开(公告)号：US20180254515A1

公开(公告)日：2018-09-06

申请号：US15756506

申请日：2016-09-14

Applicant: OSAKA SODA CO., LTD.

Inventor： Kazuhiro TAKAHASHI ,  Miwa NAKAMURA ,  Takashi MATSUO ,  Hideaki UEDA

IPC: H01M10/0525 ,  H01M4/62 ,  H01M4/133 ,  H01M4/134 ,  H01M4/66 ,  H01M4/04

CPC classification number: H01M10/0525 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/622 ,  H01M4/661 ,  H01M10/0566 ,  H01M2004/027 ,  H01M2004/028 ,  Y02E60/122 ,  Y02T10/7011

Abstract: There is provided a cathode material for a nonaqueous electrolyte secondary battery that has excellent flexibility and binding properties, and can effectively reduce the internal resistance of a nonaqueous electrolyte secondary battery, and effectively improve the charge-discharge cycle characteristics of the nonaqueous electrolyte secondary battery. The cathode material comprises a cathode active material and a binder, wherein the binder is a copolymer comprising a structural unit (A) derived from a (meth)acrylate monomer, a structural unit (B) derived from a carboxylic acid group-containing ethylenically unsaturated monomer, and a structural unit (C) derived from a polyfunctional (meth)acrylate monomer having a functionality of 5 or less, and the cathode material is substantially free of a thickener.

公开(公告)号：US20180254475A1

公开(公告)日：2018-09-06

申请号：US15756399

申请日：2016-09-14

Applicant: OSAKA SODA CO., LTD.

Inventor： Kazuhiro TAKAHASHI ,  Miwa NAKAMURA ,  Takashi MATSUO ,  Hideaki UEDA

IPC: H01M4/1391 ,  H01M10/052 ,  H01M4/1397 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62

CPC classification number: H01M4/1391 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/621 ,  H01M4/622 ,  H01M10/052 ,  H01M2220/30 ,  Y02E60/122 ,  Y02T10/7011

Abstract: There is provided a cathode material that can effectively reduce the internal resistance of a nonaqueous electrolyte secondary battery, and effectively improve the charge-discharge cycle characteristics of the nonaqueous electrolyte secondary battery. The cathode material is a cathode material for a nonaqueous electrolyte secondary battery comprising a cathode active material, a binder, and a water-soluble antioxidant.