Disclosed is a compact secondary battery module, which includes a cartridge assembly having a plurality of cartridges stacked while accommodating cells, respectively, so that a plurality of lead overlapping portions where leads of adjacent cells overlap with each other are located at a cartridge sidewall with a predetermined pattern; and a sensing housing having a plurality of bus bars located and welded corresponding to the lead overlapping portions, respectively, the sensing housing being capable of being arranged at a side of the cartridge assembly, wherein a first lead of a cell of each lead overlapping portion is configured to have a shorter width than a second lead having a polarity opposite to the first lead as much as a predetermined width, and in a state where the sensing housing is coupled to the cartridge assembly, a corresponding bus bar comes into contact with the second lead substantially on the same line as the first lead, and the second lead and the bus bar are welded to each other.

Disclosed are a submodule and a battery module having the same, the submodule being comprising a three or more odd numbers of cells, and including: a cell unit divided into one single cell and at least one double cell; a first cooling fin provided at a side of the single cell and bent in a thickness direction of the single cell; and a second cooling fin provided between two cells composing the double cell and bent in thickness directions of the two cells. The single cell is cooled by the first cooling fin in surface contact with an exposed surface of the single cell, and the double cell is cooled by the second cooling fin in surface contact with stacked surfaces of the two cells, whereby all cells can be equally cooled, and energy density of the submodule can be increased by using a minimum number of members.

The invention relates to a connecting element of a battery module or of a contacting system for a battery module, realized to connect a cell connector, designed for electrically conductive connection of voltage taps of two battery cells of the battery module, or a voltage tap of a battery cell of the battery module, to at least one conductor of a signal line of a monitoring system of the battery module in an electrically conductive manner, the connecting element having a first connection region, which is realized for materially bonded connection to the cell connector or to the voltage tap, and the connecting element furthermore having a second connection region, which is realized to accommodate at least one conductor of the signal line of the monitoring system of the battery module in a force-fitting and/or form-fitting manner.

A connecting element for at least two energy storage cells, having a metal sheet for the electrical connection of the energy storage cells. The metal sheet has at least two perforations for the uptake in each perforation of at least a part of an energy storage cell. Two lugs provided on the metal sheet project into the perforations.

An apparatus includes a battery stack including a plurality of alternating anodes and cathodes, wherein each of the anodes is positioned between first and second separators, and wherein a tab of the anode extends out from between the first and second separators, and an edge tape extending across a top of the first and second separators.

A battery holder containing 2 or more batteries connected to allow multiple voltage outputs. Each output being protected by an automatically resettable circuit to limit maximum current under all possible external connections and sound an alarm or produce a visual indication or both if any output current is exceeded. Protection and alarm are designed to sense current levels and work in holders with weak batteries, alkaline cells, mercury cells, lithium cells, rechargeable cells, and any cell with voltage greater than 1 volt. Protection and alarm will also work when battery holder has some batteries not installed. Protection circuits are not part of the batteries and remain with the battery holder when batteries are changed.

A battery system for providing electric power to a boat includes a hard deck that includes a plurality of interconnected battery panels and output power connectors. Each of the battery panels includes an array of interconnected battery cells. A connection plate receives recessed edges of adjacent battery panels and interconnect cables connect battery terminals of the adjacent battery panels.

According to an example, a plurality of battery modules may be dimensioned to fit within a form factor.

The invention relates to a battery cell connector with a first and a second substantially flat limb (1, 2), wherein the first limb (1) has a connecting side (3) for connection to a plurality of electrodes of a battery, the second limb (2) is arranged at an angle with respect to the first limb (1) and extends from that side (4) of the first limb which is opposite the connection side (3), wherein a shoulder (5) is provided which extends from the first to the second limb. Against this background, the invention specifies a battery cell connector with a high current-carrying capacity which is improved in comparison with the known battery cell connectors. For this purpose, the invention provides that the profile of the height (h) of the shoulder (5) from the first limb (1) towards the second limb is nonlinear and is convex with respect to the first and the second limb (1, 2).

A connector (20) includes a connecting member (15) with a main body portion (16) for connecting adjacent electrode terminals (12A, 12B) of a plurality of battery cells (11) including positive and negative electrode terminals (12A, 12B) and a first terminal (22) extending from the main body portion (16), a battery-side connector housing (29) accommodating the first terminal (22), a wire-side connector housing (36) to be connected to the battery-side connector housing (29) and an end part of a wire (37, and a fuse (25) arranged in the battery-side connector housing (29) to electrically connect the first terminal (22) and the wire (37).