Electrochemical cell packaging material for housing an electrochemical cell body
AssigneeDai Nippon Printing Co., Ltd.
InventorsHirohisa Akita, Youichi Mochizuki, Kazuhiko Yokota
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Abstract
Provided is a packaging material for electrochemical cells which has an identification mark that can be recognized from the outside and that is difficult to forge. The packaging material comprises a multilayer film which has a structure formed by laminating a base layer (11), an adhesive layer (13), a metal foil layer (12), an acid-modified polyolefin layer (14), and a heat-sealable layer (15) in this order, wherein the base layer (11) comprises both a oriented polyester film (11b) and a oriented nylon film (11e) with a printed layer (11c) provided on the surface of the oriented polyester film (11b) that faces the oriented nylon film (11e).
Claims4
An electrochemical cell packaging material for housing an electrochemical cell body,
- the electrochemical cell body including a positive electrode comprising a positive-electrode active material and a positive-electrode collector, a negative electrode comprising a negative-electrode active material and a negative-electrode collector, and an electrolyte filled between said positive electrode and said negative electrode;
- and
- sealing said electrochemical cell body by heat-sealing of a peripheral edge part of the electrochemical cell packaging material;
- said electrochemical cell packaging material characterized in that
- the electrochemical cell packaging material is a multilayer film having a structure formed by laminating at least a base layer, an adhesive layer, a metal foil layer, and a heat-sealable layer in this order from the outside, said heat-sealable layer arranged as an innermost layer;
- said adhesive layer contains a pigment;
- and
- a resin containing inorganic material-based particles stacked on an outside surface of said base layer such that said base layer has a matte-finished surface.
An electrochemical cell packaging material for housing an electrochemical cell body,
- the electrochemical cell body including a positive electrode comprising a positive-electrode active material and a positive-electrode collector, a negative electrode comprising a negative-electrode active material and a negative-electrode collector, and an electrolyte filled between said positive electrode and said negative electrode;
- and
- sealing said electrochemical cell body by heat-sealing of a peripheral edge part of the electrochemical cell packaging material;
- said electrochemical cell packaging material characterized in that
- the electrochemical cell packaging material is a multilayer film having a structure formed by laminating at least a base layer, an adhesive layer, a metal foil layer, and a heat-sealable layer in this order from the outside, said heat-sealable layer arranged as an innermost layer;
- said adhesive layer contains a pigment;
- a resin containing inorganic material-based particles is stacked on an outside surface of said base layer;
- and
- said pigment is a pearl pigment.
An electrochemical cell packaging material for housing an electrochemical cell body,
- the electrochemical cell body including a positive electrode comprising a positive-electrode active material and a positive-electrode collector, a negative electrode comprising a negative-electrode active material and a negative-electrode collector, and an electrolyte filled between said positive electrode and said negative electrode;
- and
- sealing said electrochemical cell body by heat-sealing of a peripheral edge part of the electrochemical cell packaging material;
- said electrochemical cell packaging material characterized in that
- the electrochemical cell packaging material is a multilayer film having a structure formed by laminating at least a base layer, an adhesive layer, a metal foil layer, and a heat-sealable layer in this order from the outside, said heat-sealable layer arranged as an innermost layer;
- said adhesive layer contains a pigment;
- a resin containing inorganic material-based particles is stacked on an outside surface of said base layer;
- and
- said pigment is a fluorescent pigment.
An electrochemical cell packaging material for housing an electrochemical cell body, the electrochemical cell body including a positive electrode comprising a positive-electrode active material and a positive-electrode collector, a negative electrode comprising a negative-electrode active material and a negative-electrode collector, and an electrolyte filled between said positive electrode and said negative electrode;
- and said electrochemical body is housed after sealing said electrochemical cell body by heat-sealing a peripheral edge part of the electrochemical cell packaging material;
- said electrochemical cell packaging material characterized in that
- the electrochemical cell packaging material is a multilayer film, said film having an outside layer and an innermost layer, and having a structure formed by laminating at least a base layer, an adhesive layer, a metal foil layer, and a heat-sealable layer in this order, wherein the outside layer comprises the base layer and the heat-sealable layer is arranged as an innermost layer;
- said adhesive layer contains a pigment;
- said outside layer having an exteriorly-facing surface;
- and
- a resin containing inorganic material-based particles stacked on said exteriorly-facing surface of said outside layer such that said base layer has a matte-finished surface.
Dependencies are inferred from the claim text.