US 2025/0030095 A1 · POWER STORAGE CELL

Abstract

In the cell case of the power storage cell according to the present disclosure, the cylindrical main body portion is formed by forming a film into a cylindrical shape, and the first opening portion and the second opening portion are formed at both ends thereof, respectively. The first sealing body closes the first opening portion. The second sealing body closes the second opening portion. The first sealing body includes an outer peripheral face that is in contact with an inner peripheral face of the cylindrical main body portion. The outer peripheral face includes a main body surface portion and a protruding portion. The main body surface portion extends in parallel to a first direction in which the first opening portion and the second opening portion are arrayed. The protruding portion protrudes from the main body surface portion toward the cylindrical main body portion.

Claims4

Dependent claims

A power storage cell, comprising:

an electrode body;
and
a cell case for accommodating the electrode body, wherein
the cell case includes
a cylindrical main body portion in which a film is fashioned into a cylindrical shape, with a first opening portion and a second opening portion provided at respective ends,
a first sealing body for closing the first opening portion, and
a second sealing body for closing the second opening portion,
the first sealing body includes an outer peripheral face that adheres to an inner peripheral face of the cylindrical main body portion, and
the outer peripheral face includes a main body surface portion extending in parallel to a first direction in which the first opening portion and the second opening portion are arrayed, and a protruding portion protruding from the main body surface portion toward the cylindrical main body portion.

6 more elements

Dependencies are inferred from the claim text.

Power storage cell

Life of this patent

Power storage cell

Life of this patent

Abstract

Claims4