Electricity storage device and electricity storage module
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsAtsushi Minagata, Motoaki Okuda
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Abstract
An electricity storage device includes a case, an electrode assembly housed in the case, and a positive electrode (negative electrode) terminal sending and receiving electricity to and from the electrode assembly. The positive electrode (negative electrode) terminal includes a cylindrical part having a part projecting outside the case. The outer peripheral surface of the cylindrical part has a male screw with which a nut for fastening the positive electrode (negative electrode) terminal to the case is threadedly engaged from the outside of the case. The inner peripheral surface of the cylindrical part has a female screw having a screw direction opposite the male screw.
Claims10
An electricity storage device comprising:
- a case;
- an electrode assembly accommodated in the case;
- and
- an electrode terminal transmitting and receiving electricity to and from the electrode assembly, wherein the electrode terminal includes a tube including a portion projecting out of the case, wherein
- an outer circumferential surface of the tube includes a male thread, and a nut is engaged with the male thread at the outer side of the case to fasten the electrode terminal to the case, wherein the nut is located outside the case of the assembled electricity storage device, and
- an inner circumferential surface of the tube includes a female thread that is threaded in a direction opposite to that of the male thread,
- wherein the male thread and the female thread at least partially overlap.
Dependencies are inferred from the claim text.