Exterior material for power storage device, method for producing said exterior material, sealant film, and power storage device
AssigneeDai Nippon Printing Co., Ltd.
InventorsAi OKANO, Naoya TAKEUCHI, Hiroki TSUNEDA, Miho SASAKI
Life of this patent
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Abstract
An exterior material for a power storage device, the exterior material being constituted by a laminated body that includes at least a base material layer, a barrier layer, and a heat-sealable resin layer in this order from the outer side. The heat-sealable resin layer is formed from a polybutylene terephthalate film. The exterior material has a water-absorbing layer on the inner side than the barrier layer, and that contains a water-absorbing agent.
Claims23
An exterior material for electrical storage devices, comprising a laminate including at least a base material layer, a barrier layer and a heat-sealable resin layer in this order from an outside, wherein
- the heat-sealable resin layer is formed of a polybutylene terephthalate film, and
- a water absorbing layer containing a water absorbent is provided on an inner side with respect to the barrier layer.
A sealant film that is used for a heat-sealable resin layer of an exterior material for electrical storage devices,
- the sealant film being formed of a polybutylene terephthalate film, and
- the sealant film including a water absorbing layer containing a water absorbent.
A method for manufacturing an exterior material for electrical storage devices, the method comprising producing a laminate in which at least a base material layer, a barrier layer and a heat-sealable resin layer are laminated in this order from an outside, wherein
- the heat-sealable resin layer is formed of a polybutylene terephthalate film, and
- a water absorbing layer containing a water absorbent is provided on an inner side with respect to the barrier layer.
An exterior material for electrical storage devices, comprising a laminate including at least a base material layer, a barrier layer and a heat-sealable resin layer in this order from an outside, wherein
- the heat-sealable resin layer is formed of a polybutylene terephthalate film, and
- a sulfur-based gas absorbing layer containing a sulfur-based gas absorbent is provided on the inner side with respect to the barrier layer.
A sealant film that is used for a heat-sealable resin layer of an exterior material for electrical storage devices,
- the sealant film being formed of a polybutylene terephthalate film,
- the sealant film including a sulfur-based gas absorbing layer containing a sulfur-based gas absorbent.
A method for manufacturing an exterior material for electrical storage devices, the method comprising producing a laminate in which at least a base material layer, a barrier layer and a heat-sealable resin layer are laminated in this order from an outside, wherein
- the heat-sealable resin layer is formed of a polybutylene terephthalate film, and
- a sulfur-based gas absorbing layer containing a sulfur-based gas absorbent is provided on an inner side with respect to the barrier layer.
Dependencies are inferred from the claim text.