ADHESIVE COMPOSITION ADHESIVE SHEET FOR BATTERY AND LITHIUM-ION BATTERY

• Main Authors: ARAZOE TETSUYA, TAKADA KOUSUKE, KURATA YUICHI, ANSAI TAKESHI
• Format: Patent
• Language: English; Korean
• Published: 18.06.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRICITY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; USE OF MATERIALS AS ADHESIVES

An objective of the present invention is to provide an adhesive composition, an adhesive sheet for a battery, and a lithium ion battery, wherein an adhesive is difficult to elute into an electrolyte even when the adhesive sheet touches the electrolyte. As a means for solving the objective, provided is an adhesive composition for forming an adhesive layer (13) of an adhesive sheet (1) for a battery, which contains a (meth)acrylic acid ester polymer including a monomer having a carboxyl group in the molecule as a monomer unit constituting the polymer; and a metal chelate type crosslinking agent. 본 발명은, 점착 시트가 전해액에 접촉한 경우여도, 점착제가 전해액에 용출하기 어려운 점착성 조성물, 전지용 점착 시트 및 리튬이온 전지를 제공하는 것을 과제로 한다. 이러한 과제를 해결하기 위한 수단으로서, 전지용 점착 시트(1)의 점착제층(13)을 형성하기 위한 점착성 조성물로서, 중합체를 구성하는 모노머 단위로서, 분자 내에 카르복시기를 갖는 모노머를 포함하는 (메타)아크릴산에스테르 중합체와, 금속 킬레이트계 가교제를 함유하는 점착성 조성물을 제공한다.