Abstract:
A power battery assembly (1) comprises a battery circuit and a circuit protecting unit (100). The circuit protecting unit (100) is connected in series with the battery unit. The circuit protecting unit (100) comprises a relay (2) and a current sensing unit (3) connected in series with the battery circuit, a switching unit (5) connected with the relay (2) for controlling the switching of the relay (2), and a controller (4) connected with the switching unit (5) and the current sensing unit (3)to control the switching on or switching off the switching unit (5) based on comparison of the current value detected by the current sensing unit (3) and sent to the controller (4) with a first predetermined current value. An electric vehicle is also provided.
Abstract:
An explosion-proof device for a battery which comprises: a vent formed in the battery shell(5) of the battery;a valve vore movably disposed in the vent(51) to seal and open the vent(51),a support mounted on the outer wall of the battery shell(5);and an elastic element(2) connected to the support and the valve core(1) at two ends thereof respectively so as to normally push the valve core(1) to seal the vent(51).A power battery and a power battery module comprising the explosion-proof device are also provided.
Abstract:
A battery safety vent is provided. The battery safety vent comprises: an explosion-proof film fixed on a battery cover plate; a safety vent cover covering above the explosion-proof film and having a pressure release aperture; and an explosion-proof pin disposed at a top of the safety vent cover, in which a free head of the pin is blunt and points to the explosion-proof film. A battery having the battery safety vent is further provided. The battery safety vent may release the internal pressure of the battery via a large scale broken explosion-proof film if the internal pressure is high, so as to ensure the safety of the battery.
Abstract:
A power battery module (1000) is provided. The power battery module (1000) includes a battery accommodating assembly (100) having a plurality of separators (10), each separator (10) comprising: a separator body (11) having a front portion defining a front accommodating groove (14) and a rear portion; a left cover (12); a right cover (13), a battery group, a power connection member (407), a power connection line (4071) and a line snap-fit (200); in which adjacent separators (10) are detachably connected with each other, and the front accommodating groove (14) of one of the adjacent separators (10) and the rear portion of the separator body (11) of the other of the adjacent separators (10) define a battery chamber, and a snapping hole (1123) is formed in at least one of upper and lower walls of the front accommodating groove (14).
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. The present invention simplifies the manufacturing technology, increases the energy density of the battery, the mechanical property and safety property of the battery, and has an excellent high discharge property.
Abstract:
An electricity supply system is provided. The electricity supply system comprises: a battery module (1), comprising at least two in-series modules (11), each in-series module (11) comprising at least two battery groups connected in series; a control module (2) connected with the battery module (1), comprising: an IGBT module (23), a relay module (22) comprising a plurality of relays K, in which each in-series module (11) is connected to the relay module (22), and the relay module (22) is connected to the IGBT module (23), a relay control module (21) configured for controlling an ON or OFF of each relay K so as to select one or more in-series modules (11 ) to work with the IGBT module (23); and a distribution box (3) connected with the control module (2). The electricity supply system may realize heating battery groups in batches and equilibrium of voltage between battery groups.
Abstract:
A fuse comprises upper and lower shells (1, 5) coupled to each other to define a cavity (Q); first and second conductors (2a, 2b) each disposed between the upper and lower shells, first ends of the first and second conductors disposed in the cavity respectively and opposite to each other to define a gap therebetween, and second ends of the first and second conductors extended out from the cavity; a conductive bar (3) disposed in the gap and welded to the first ends of the first and second conductors respectively to form first and second welding seams (6a, 6b) at two sides of the conductive bar, each of the first and second welding seams having a resistivity greater than that of the conductive bar; and first and second pushing units (4a, 4b) normally pushing the conductive bar in a direction away from the gap.
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:
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 colleted 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.