In a battery cell connection structure for connecting two rectangular battery cells in series in a state where the two battery cells are stacked in the thickness direction thereof, a positive electrode tab of one of the battery cells and a negative electrode tab of the other of the battery cells are connected to each other in a state where the positive electrode tab and the negative electrode tab are stacked in the thickness direction while the positive electrode tab and the negative electrode tab are inclined with respect to a direction in which the two battery cells are stacked.

To prevent an increase in the electrical resistance between a terminal for external connection and a cell terminal of a battery cell of a battery cell group. A battery module 100 includes a battery cell group 10, a pair of end plates 20, a bus bar 30, and a fastening member 40. The end plate 20 includes a recess 21 adapted to partially house the fastening member 40 in a mutually movable manner in one direction (X-direction) corresponding to the stacked direction of the plurality of battery cells 1. The battery module 100 also has a gap S between an inner side wall 21a of the recess 21 and the fastening member 40 in the one direction (X-direction).

To prevent an increase in the electrical resistance between a terminal for external connection and a cell terminal of a battery cell of a battery cell group. A battery module 100 includes a battery cell group 10, a pair of end plates 20, a bus bar 30, and a fastening member 40. The end plate 20 includes a recess 21 adapted to partially house the fastening member 40 in a mutually movable manner in one direction (X-direction) corresponding to the stacked direction of the plurality of battery cells 1. The battery module 100 also has a gap S between an inner side wall 21a of the recess 21 and the fastening member 40 in the one direction (X-direction).

An energy storage apparatus, which includes a plurality of energy storage devices, includes: a bus bar which connects the energy storage devices to each other; a wiring; a wiring positioning member, which includes a plurality of guide portions; and a connector holding member, wherein a part of the plurality of guide portions positions the connecting holding member, and wherein an other part of the plurality of guide portions forms a path of the wiring.

An energy storage apparatus, which includes a plurality of energy storage devices, includes: a bus bar which connects the energy storage devices to each other; a wiring; a wiring positioning member, which includes a plurality of guide portions; and a connector holding member, wherein a part of the plurality of guide portions positions the connecting holding member, and wherein an other part of the plurality of guide portions forms a path of the wiring.

A battery system for an electric vehicle includes a fixed cover, and a removable cover arranged over battery modules and a high voltage distribution system. The battery system includes a busbar arranged at least partially over a region of the battery modules and under the removable cover. The busbar includes a fixed section and a movable section, or a hinge, such that the busbar can be repositioned out of the way. The support tray includes a link between the fixed and movable sections. Floating fasteners, allowing at least one of radial float and axial float are used to secure the link to the support tray, thereby avoiding safety hazards and reducing the potential for short circuits in high voltage distribution systems or conductors thereof. The floating fasteners include a head, a neck, an engagement section, and a washer, which prevent removal from a component once installed.

A battery system for an electric vehicle includes a fixed cover, and a removable cover arranged over battery modules and a high voltage distribution system. The battery system includes a busbar arranged at least partially over a region of the battery modules and under the removable cover. The busbar includes a fixed section and a movable section, or a hinge, such that the busbar can be repositioned out of the way. The support tray includes a link between the fixed and movable sections. Floating fasteners, allowing at least one of radial float and axial float are used to secure the link to the support tray, thereby avoiding safety hazards and reducing the potential for short circuits in high voltage distribution systems or conductors thereof. The floating fasteners include a head, a neck, an engagement section, and a washer, which prevent removal from a component once installed.

A battery connector including a conductive plate configured to contact a first battery and a second battery so as to electrically connect the first battery and the second battery to each other, an upper fixer configured to be coupled the first battery, and a lower fixer configured to be coupled to the second battery.

A battery is provided. The battery includes: a housing and a plurality of accommodating cavities provided in the housing. Two adjacent accommodating cavities are separated by a partition plate. An electrode core assembly is arranged in each of the accommodating cavities. A plurality of electrode core assemblies are sequentially arranged along the first direction and connected in series. A spacer is arranged between the end of the electrode core assembly along the first direction and the partition plate.

Disclosed herein is a battery module. The battery module can include a cell stack having battery cells stacked in one direction and at least one lead overlapping portion formed as electrode leads of the battery cells overlap each other, and a voltage sensing member. The voltage sensing member can have at least one sensing part directly connected to the at least one lead overlapping portion. Each lead overlapping portion and each sensing part can be fixed and combined by a rivet member.