A temporary sealing plug is used to temporarily close an injection port of a power storage cell after injection. The temporary sealing plug includes a central portion and a peripheral edge portion. When viewed in a plan view, the peripheral edge portion surrounds the central portion. A cut extending radially from the central portion toward the peripheral edge portion is formed.

A temporary sealing plug is used to temporarily close an injection port of a power storage cell after injection. The temporary sealing plug includes a central portion and a peripheral edge portion. When viewed in a plan view, the peripheral edge portion surrounds the central portion. A cut extending radially from the central portion toward the peripheral edge portion is formed.

A battery cell includes a case including an electrode assembly accommodating space in which an electrode assembly and an electrolyte are accommodated, a cap plate covering the electrode assembly accommodating space, an electrolyte injection port formed as a hole penetrating through the cap plate and inclined towards the electrode assembly accommodating space, a terminal portion provided in the cap plate and connected to the electrode assembly, and a temporary sealing member having an outer peripheral surface inclined at an angle corresponding to the electrolyte injection port and inserted into the electrolyte injection port.

A battery cell includes a case including an electrode assembly accommodating space in which an electrode assembly and an electrolyte are accommodated, a cap plate covering the electrode assembly accommodating space, an electrolyte injection port formed as a hole penetrating through the cap plate and inclined towards the electrode assembly accommodating space, a terminal portion provided in the cap plate and connected to the electrode assembly, and a temporary sealing member having an outer peripheral surface inclined at an angle corresponding to the electrolyte injection port and inserted into the electrolyte injection port.

Aspects of the subject disclosure relate to various features of a battery subassembly, such as a battery module. The battery subassembly may be implemented in an electric vehicle or in a building. In one or more implementations, the battery subassembly may include a battery cell having a peripheral rim having a first width and forming a terminal for the battery cell; and at least one weld configured to couple the peripheral rim to a connector, in which the at least one weld has a second width that is larger than the first width.

Aspects of the subject disclosure relate to various features of a battery subassembly, such as a battery module. The battery subassembly may be implemented in an electric vehicle or in a building. In one or more implementations, the battery subassembly may include a battery cell having a peripheral rim having a first width and forming a terminal for the battery cell; and at least one weld configured to couple the peripheral rim to a connector, in which the at least one weld has a second width that is larger than the first width.

A battery assembly for circulation of an electrolyte composition comprises a jar body having an upper and a lower end and a floor at the lower end, one or more sidewalls presenting an interior and an exterior surface, and a jar cover. The jar body defines an interior cavity disposed about a vertical axis. The battery assembly comprises two or more ports including a first port and a second port. The battery assembly also comprises one or more valve assemblies. The electrolyte composition is evacuated from the interior cavity through the first port or the second port and is replaced with additional electrolyte composition through the other port to create an electrolyte composition flow pattern within the interior cavity between the lower end and the upper end of the battery assembly.

A battery assembly for circulation of an electrolyte composition comprises a jar body having an upper and a lower end and a floor at the lower end, one or more sidewalls presenting an interior and an exterior surface, and a jar cover. The jar body defines an interior cavity disposed about a vertical axis. The battery assembly comprises two or more ports including a first port and a second port. The battery assembly also comprises one or more valve assemblies. The electrolyte composition is evacuated from the interior cavity through the first port or the second port and is replaced with additional electrolyte composition through the other port to create an electrolyte composition flow pattern within the interior cavity between the lower end and the upper end of the battery assembly.

A current collector assembly includes an electrically conductive layer with several tabs used to electrically couple with one or more battery cells. The tabs may connect to an interconnect of the electrically conductive layer by way of a fuse. Several fuses may include portions of difference sizes. For example, one portion of the fuse may be relatively longer and narrower, while another portion of the fuse may be shorter and wider. The narrower portion may be positioned between insulating layers of the current collector assembly, while the wider portion extends from the insulating layers. The wider portion of the fuse increases the likelihood of the fuse remaining intact when various forces are exerted on the fuse.

A current collector assembly includes an electrically conductive layer with several tabs used to electrically couple with one or more battery cells. The tabs may connect to an interconnect of the electrically conductive layer by way of a fuse. Several fuses may include portions of difference sizes. For example, one portion of the fuse may be relatively longer and narrower, while another portion of the fuse may be shorter and wider. The narrower portion may be positioned between insulating layers of the current collector assembly, while the wider portion extends from the insulating layers. The wider portion of the fuse increases the likelihood of the fuse remaining intact when various forces are exerted on the fuse.