A power storage system of the present technology includes a battery board configured to accommodate a secondary battery, a branch board, a first frame on which the battery board is placed, a second frame on which the branch board is placed, and a plurality of connection wirings that are disposed in the first frame and the second frame and connects the battery board and the branch board. The plurality of connection wirings are aggregated in the second frame.

Systems and methods for a scalable battery controller are disclosed. In one example, a circuit board coupled to a battery cell stack is designed to be configurable to monitor and balance battery cells of battery cell stacks that may vary depending on battery pack requirements. Further, the battery pack control module may configure software instructions in response to a voltage at a battery cell stack.

Disclosed is a battery module, including a cartridge laminate including a plurality of secondary batteries, each having an electrode lead, and a plurality of cartridges configured to respectively accommodate at least one secondary battery among the secondary batteries and stacked at multi stages; an integrated circuit board (ICB) housing having a bus bar connected to the electrode lead at a predetermined connection point and coupled to one surface of the cartridge laminate; and a sensing unit having a connection wire disposed to pass through the ICB housing and connected to the bus bar to allow voltages of the secondary batteries to be sensed, wherein the ICB housing further includes a wire fixing unit having a wire fixing recess formed by indenting an outer surface of the ICB housing toward an inner surface of the ICB housing to be located near the inner surface of the ICB housing in comparison to the connection point, and at least a part of the connection wire is inserted into and fixed in the wire fixing recess.

A battery pack is provided. The battery pack including a plurality of battery cells; a cell holder including a peripheral wall and a plurality of cell storage units; and a plurality of ribs integrally molded with the cell holder between the peripheral wall of the cell holder and the cell storage unit.

The present invention discloses an arc-shaped battery box structure for light-fixture, comprising an arc-shaped box body provided with a battery compartment and a battery cover covering the battery compartment in a matching and sealing manner, wherein, the battery cover and the battery compartment are in the shape of an elongated arc and matched with each other; an end portion of the battery cover is inclined and bent towards the battery compartment, or an open end portion of the battery compartment is inclined and bent towards the battery cover, or the end portion of the battery cover and the open end portion of the battery compartment are inclined and bent towards each other; and the battery cover and the battery compartment are quickly interlocked at an arc-shaped side wall.

A battery pack includes battery cells; a battery cell holder in which the battery cells are accommodated; and an exhaust pipe, wherein the battery cell holder includes a first cell holder to which upper end portions of the battery cells are assembled, a second cell holder to which lower end portions of the battery cells are assembled, and a first separation member on the first cell holder, the exhaust pipe extends from an outer sider surface of the battery cell holder, and the exhaust pipe is in fluid communication with an exhaust path between the first separation member and an outer side surface of the first cell holder.

A battery protection board includes a first circuit board, a second circuit board, and a tab connecting portion. The first circuit board includes a first substrate, electronic components and an insulation layer. The first substrate includes a first surface and a second surface opposite to each other. The electronic components are disposed on the first surface and the insulation layer covers the electronic components on the first surface. The second circuit board includes a second substrate. The second substrate includes a third surface and a fourth surface opposite to each other. The third surface is connected with the second surface. The tab connecting portion is disposed on the fourth surface. The first substrate has sufficient space reserved for welding the second substrate improving reliability of connection between the first and the second circuit boards, optimizing spatial layout of the battery protection board and ensuring versatility of first circuit board.

A battery protection board includes a first circuit board, a second circuit board, and a tab connecting portion. The first circuit board includes a first substrate, electronic components and an insulation layer. The first substrate includes a first surface and a second surface opposite to each other. The electronic components are disposed on the first surface and the insulation layer covers the electronic components on the first surface. The second circuit board includes a second substrate. The second substrate includes a third surface and a fourth surface opposite to each other. The third surface is connected with the second surface. The tab connecting portion is disposed on the fourth surface. The first substrate has sufficient space reserved for welding the second substrate improving reliability of connection between the first and the second circuit boards, optimizing spatial layout of the battery protection board and ensuring versatility of first circuit board.

A battery module including a battery cell stack, which includes a plurality of battery modules; a busbar frame mounted on each of a front surface and a rear surface of the battery cell stack; a flexible printed circuit board unit to which a temperature sensor for measuring the temperature of the battery cell stack is attached; and a reinforcing sheet attached to the flexible printed circuit board unit.

A battery module including a battery cell stack, which includes a plurality of battery modules; a busbar frame mounted on each of a front surface and a rear surface of the battery cell stack; a flexible printed circuit board unit to which a temperature sensor for measuring the temperature of the battery cell stack is attached; and a reinforcing sheet attached to the flexible printed circuit board unit.