Abstract: A power battery assembly may include a battery circuit and a circuit protecting unit. The circuit protecting unit may be connected in series with the battery circuit. The circuit protecting unit may include a relay and a current sensing unit connected in series with the battery circuit. A switching unit is connected with the relay for controlling the switching of the relay, and a controller is connected with the switching unit and to the current sensing unit to control switching on or switching off the switching unit based on comparison of the current value detected by the current sensing unit, and sent to the controller with a first predetermined current value.

Abstract: A connector between battery modules and a battery system comprising the same are provided. The connector between battery modules comprises: first and second connecting pieces (21, 22), the first connecting piece (21) being electrically connected to an output end of a first battery module, the second connecting piece (22) being electrically connected to an output end of a second battery module adjacent to the first battery module, and the first connecting piece (21) and the second connecting piece (22) being electrically connected to each other so as to form an electrically-connected part therebetween; a clamping unit configured to clamp the electrically-connected part; and a support (5), the clamping unit being fixed onto the support (5) so as to support the electrically-connected part between the first connecting piece (21) and the second connecting piece (22).

Abstract: A power battery assembly may include a battery circuit and a circuit protecting unit. The circuit protecting unit may be connected in series with the battery circuit. The circuit protecting unit may include a relay and a current sensing unit connected in series with the battery circuit. A switching unit is connected with the relay for controlling the switching of the relay, and a controller is connected with the switching unit and to the current sensing unit to control switching on or switching off the switching unit based on comparison of the current value detected by the current sensing unit, and sent to the controller with a first predetermined current value.

Abstract: A battery explosion-proof device battery explosion-proof device includes a valve body, a rupture plate, and a protecting cover. The valve body includes a base portion and a shaft portion connected with the base portion. The shaft portion may be formed with threads on an external circumferential surface thereof and with a venting passage. The rupture plate may be disposed inside a concaved portion of the base portion for sealing the venting passage. The protecting cover covers the concaved portion.

Abstract: A battery and a battery cover assembly thereof are provided. The battery cover assembly comprises a cover (1) having a through hole; an extraction electrode terminal (3); and an insulating seal member disposed between the cover and the extraction electrode terminal. The extraction electrode terminal (3), starting from its top, includes a columnar seal part (31), a position part (32) and a weld part (33) that are consecutively connected together, the columnar seal part (31) passing through the through hole of the cover and having a seal groove formed along a circumferential surface thereof, the position part (32) having a horizontally-oriented platform, and the weld part (33) having a sheet-like shape and being perpendicular to the horizontally-oriented platform of the position part.

Abstract: An electricity supply system comprises: a battery module, a control module, and a distribution box. The battery module includes at least two in-series modules, each comprising at least two battery groups connected in series. The control module is connected with the battery module and includes an IGBT module, a relay module, and a relay control module. The relay module includes a plurality of relays K. Each in-series module is connected to the relay module. The relay module is connected to the IGBT module. The relay control module is configured for controlling ON or OFF of each relay K so as to select an in-series module to work with the IGBT module. The distribution box is connected with the control module.

Abstract: A battery terminal includes an outer terminal segment, the outer terminal segment being made of a first conductive material; an inner terminal segment being made of a second conductive material different from the first conductive material and having an upper end connected to a lower end of the outer terminal segment forming a connection portion between the upper end of the inner terminal segment and the lower end of the outer terminal segment, and a protection member around the connection portion. With the battery terminal according to an embodiment of the present invention into batteries, adjacent batteries can be connected together more reliably.

Abstract: A fuse includes an upper shell, a lower shell and a cavity formed by the upper shell and the lower shell; first and second conductors which are respectively disposed between the upper shell and the lower shell. The first ends of each conductors are disposed in the cavity and form a clearance. The second ends of the conductors extend out from the cavity. A conductive bar is welded to the first and second conductors to form a first weld line and a second weld line.

Abstract: Disclosed herein is a heat dissipating device for a battery pack which comprises a heat pipe and a heat collecting plate comprising a bottom heat collecting plate and an upper heat collecting plate each having a hole therein, wherein two ends of the heat pipe are inserted respectively into the holes in the bottom heat collecting plate and the upper heat collecting plate. A battery using the heat dissipating device is also disclosed. During the operation of the heat dissipating device, since the heat generated by the cells can be collected in the upper heat collecting plate, then transmitted to the bottom heat collecting plate through the heat pipe, and finally dissipated outwardly by the bottom heat collecting plate, the heat generated by cells can be dissipated rapidly and efficiently.

Abstract: An electrochemical storage cell is disclosed which includes at least one cathode sheet, at least one anode sheet and at least one separator sheet combined to make a core. The core is housed within a rectangular shell with four sides and two ends, sealed with an air-tight seal. The cell further includes a blow out vent in at least one of the two ends of the shell. This blow out vent is adapted to open and release excess pressure above a predetermined level to thereby prevent catastrophic rupture of the shell.

Abstract: A connector between battery modules and a battery system comprising the same are provided. The connector between battery modules comprises: first and second connecting pieces (21, 22), the first connecting piece (21) being electrically connected to an output end of a first battery module, the second connecting piece (22) being electrically connected to an output end of a second battery module adjacent to the first battery module, and the first connecting piece (21) and the second connecting piece (22) being electrically connected to each other so as to form an electrically-connected part therebetween; a clamping unit configured to clamp the electrically-connected part; and a support (5), the clamping unit being fixed onto the support (5) so as to support the electrically-connected part between the first connecting piece (21) and the second connecting piece (22).

Abstract: The present invention disclosed a battery safety vent comprising: an explosion-proof film fixed on a battery cover plate, a safety vent cover covering the explosion-proof film and having a pressure release aperture, and an explosion-proof pin disposed on top of the safety vent cover, in which a free head of the pin is blunt and points to the explosion-proof film. The present invention further disclosed a battery having the above battery safety vent.

Abstract: A battery and a battery cover assembly thereof are provided. The battery cover assembly comprises a cover (1) having a through hole; an extraction electrode terminal (3); and an insulating seal member disposed between the cover and the extraction electrode terminal. The extraction electrode terminal (3), starting from its top, includes a columnar seal part (31), a position part (32) and a weld part (33) that are consecutively connected together, the columnar seal part (31) passing through the through hole of the cover and having a seal groove formed along a circumferential surface thereof, the position part (32) having a horizontally-oriented platform, and the weld part (33) having a sheet-like shape and being perpendicular to the horizontally-oriented platform of the position part.

Abstract: A battery system for storing electrical power and supplying electrical power to a vehicle is disclosed. The system includes multiple battery packs, each with a plurality of cells. The cells in each battery pack are electrically connected with one another and the multiple battery packs are also electrically connected with one another to combine the total energy output of the cells of the system. The electrical connections between at least some of the cells include a severable feature, whereby the electrical connection is severed locally at the severable feature in response to an impact force that is in excess of a predetermined magnitude and/or an overcurrent/overtemperature condition.

Abstract: The present invention disclosed a battery safety vent comprising: an explosion-proof film fixed on a battery cover plate, a safety vent cover covering the explosion-proof film and having a pressure release aperture, and an explosion-proof pin disposed on top of the safety vent cover, in which a free head of the pin is blunt and points to the explosion-proof film. The present invention further disclosed a battery having the above battery safety vent.

Abstract: Disclosed herein is a lithium ion battery comprising an electrode core, an electrolyte solution, a metal shell and an end cover assembly, said metal shell comprising an outer wall, an inner wall and a chamber, said electrode core and electrolyte solution being located in the chamber of the metal shell, and said electrode core being connected to the end cover assembly with a electrode terminal of the electrode core, wherein the number of said electrode core is more than one, and the multiple electrode cores are located in the chamber of the metal shell. The lithium ion battery according to the present invention possesses excellent disperse heat dispersion, high mechanical safety, and good high rate discharge performance.

Abstract: A fuse includes an upper shell, a lower shell and a cavity formed by the upper shell and the lower shell; first and second conductors which are respectively disposed between the upper shell and the lower shell. The first ends of each conductors are disposed in the cavity and form a clearance. The second ends of the conductors extend out from the cavity. A conductive bar is welded to the first and second conductors to form a first weld line and a second weld line.

Abstract: An explosion-proof device for a battery comprises: a vent formed in a battery shell of the battery; a valve core movably disposed in the vent to seal and open the vent; a support mounted on an outer wall of the battery shell; and an elastic element. One end of the elastic element is connected to the support and another end of the elastic element is connected to the valve core so as to normally push the valve core to seal the vent. Each of a power battery and a power battery module includes the explosion-proof device.

Abstract: The present invention relates to lithium ion secondary batteries that have an enclosure with an electrode core compartment for holding the electrode core and a separate protection circuit compartment for holding the protection circuits, and terminal leads connecting the electrodes in the electrode core with the circuits in the protection circuit. The enclosure is made of non-conducting material such as plastic. The lithium batteries of this invention are light, not only because of the weight of the material of their enclosure, but also because its non-conducting character eliminates the necessity of additional protective features that are commonly necessary for enclosures with metal components.

Abstract: A type of winding assembly type lithium ion secondary power battery includes: winding assembly type electrode cores wound with positive electrodes, negative electrodes and a separation membrane, electrolyte, and a battery shell. Its characteristics are: the interior of the battery shell carries at least one electrode units formed by electrode holders holding many stacked electrode cores. The terminal leads of the current collector for all positive and negative electrode cores are led from the upper and lower ends of the electrode unit respectively. The positive and negative terminals on cover boards and the outer side of the cover boards are connected to terminal leads of the current collector by built-in fasteners. There is a separation ring between the electrode core body of the battery and the cover boards of the battery.