PACKAGING MATERIAL AND PACKAGE FOR ALL-SOLID LITHIUM ION BATTERY

• Main Authors: TAKEUCHI NAOYA, TSUNEDA HIROTAKA
• Format: Patent
• Language: English; Japanese
• Published: 10.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING

To provide a sulfur-based gas absorption packaging material and a package for an all-solid lithium ion battery which are excellent in manufacturing suitability, and absorb sulfur-based gas generated from a sulfide-based inorganic solid electrolyte type all-solid lithium ion battery even with simple layer constitutions.SOLUTION: A sulfur-based gas absorption packaging material for a sulfide-based inorganic solid electrolyte type all-solid lithium ion battery absorbs sulfur-based gas, wherein the packaging material for the all-solid lithium ion battery contains at least a base material layer composed of a base material film, a gas barrier layer composed of a gas barrier film, and a sealant layer composed of a sulfur-based gas absorption sealant film, the sulfur-based gas absorption sealant film contains a sulfur-based gas absorbent and a heat-sealable resin, and a content of the sulfur-based gas absorbent in the layer containing the sulfur-based gas absorbent is 0.3 mass% or more and 30 mass% or less.SELECTED DRAWING: Figure 1 【課題】製造適性に優れ、簡易な層構成でありながら、硫化物系無機固体電解質タイプの全固体リチウムイオンバッテリーから発生した、硫黄系ガスを吸収する全固体リチウムイオンバッテリー用の硫黄系ガス吸収包装材料、及び包装体を提供する。【解決手段】硫黄系ガスを吸収する、硫化物系無機固体電解質タイプの全固体リチウムイオンバッテリー用の、硫黄系ガス吸収包装材料であって、該全固体リチウムイオンバッテリー用包装材料は、少なくとも、基材フィルムからなる基材層と、ガスバリア性フィルムからなるガスバリア層と、硫黄系ガス吸収シーラントフィルムからなるシーラント層とを含み、該硫黄系ガス吸収シーラントフィルムは、硫黄系ガス吸収剤とヒートシール性樹脂とを含有し、該硫黄系ガス吸収剤を含有する層中の該硫黄系ガス吸収剤の含有量は、０．３質量％以上、３０質量％以下である、硫黄系ガス吸収包装材料。【選択図】図１