Energy storage element

摘要

An energy storage element comprising: a container; an electrode assembly housed in the container; an electrode terminal provided in the container; and a current collector which electrically connects the electrode terminal and the electrode assembly, wherein the current collector is positioned inside the container, and includes: a base part connected to the electrode terminal; and arm parts which have a plate shape, extend from the base part, and are connected to the electrode assembly in a state that the plate-shaped arm parts sandwich the electrode assembly, and paired arm parts which are outermost two of the arm parts are apart from each other with a spacing larger than a width of the base part in a direction in which the paired arm parts are arranged.

主权项

1. An energy storage element comprising:
a container; an electrode assembly housed in the container; an electrode terminal provided in the container; and a current collector which electrically connects the electrode terminal and the electrode assembly, wherein the current collector is positioned inside the container, and includes:
a base part connected to the electrode terminal; and a plurality of arm parts which extend from the base part in a direction away from the electrode terminal and which are connected to the electrode assembly in a state that the plurality of arm parts sandwich the electrode assembly, wherein the plurality of arm parts comprises paired arm parts which are an outermost two of the plurality of arm parts and are apart from each other with a spacing greater than a width of the base part in a direction in which the paired arm parts are arranged wherein the paired arm parts include:
paired arm bodies connected to the electrode assembly; andpaired bridge parts which connect the paired arm bodies and the base part, and wherein the paired bridge parts are apart from each other with spacings that are smaller at positions closer to the base part.