Abstract:
A current fuse device and a battery assembly comprising the same. The current fuse device (100, 200) comprises an insulating box(1) having a cavity(10), a first conductor(21) with a first inner end(211), a second conductor(22) with a second inner end(221) and at least one elastic member(31,32) provided on at least one of the first conductor(21) and the second conductor(22) inside the cavity(10). The elastic member(31,32) forms electrical connection with the first and second inner ends(211, 221) simultaneously. The elastic member(31,32) may have elastic potential energy to break the electrical connection during short-circuiting.
Abstract:
An electrochemical storage cell is disclosed that comprises a cathode sheet, an anode sheet, and a separator sheet between the cathode and anode sheets. A metal foil current collector extends from a longitudinal edge of the cathode sheet. A further metal foil current collector extends from a longitudinal edge of the anode sheet. The anode sheet, cathode sheet, and separator sheet are wound in a flattened coil shape to produce a core in which the metal foil current collector of the cathode sheet extends beyond the separator sheet at one end of the core and the metal current collector of the anode sheet extends beyond the separator sheet at an opposite end of the core. Overlying layers of the metal foil current collector of the cathode sheet are compressed together and placed in electrical communication with a positive terminal of the cell while overlying layers of the metal foil current collector of the anode sheet are compressed together and placed in electrical communication with a negative terminal of the cell.
Abstract:
The present invention discloses a battery pack, which comprises a plurality of unit cells (1) each of which has two electrode terminals (2 and 3), and which are connected in series or in parallel by connecting an electrode terminal (2 or 3) of a unit cell (1) to an electrode terminal (3 or 2) of an adjacent unit cell (1), characterized in that, the electrode terminals (2 and 3) each is formed in a sheet shape, and the connection between the electrode terminals (2 and 3) is the binding of two sheets. According to the present invention, the battery pack has a low internal resistance, light weight, and reliable connection.
Abstract:
A safety valve for battery has a valve body (1) and a valve core (2). The valve body (1) is fixed on a cover plate (4) of a battery and covers a discharging hole (9) in the cover plate (4) of the battery. The valve body (1) is formed with an exhaust opening (3) which is communicated with an internal space of the valve body (1). The valve core (2) is elastically held between a top cover (11) of the valve body (1) and the cover plate (4) of the battery. A plurality of columns (6) are arranged at intervals along a circumference of a gap between a side wall of the valve core (2) and an inner wall of the valve body (1). A cavity defined by every two adjacent columns (6), the side wall of the valve core (2) and the inner wall of the valve body (1) forms as a side exhaust slot (7) which is communicated with the exhaust opening (3) in the valve body (1).
Abstract:
A power battery pack and an electrical vehicle including the same are provided. The power battery pack includes: a tray; a plurality of battery modules disposed in the tray, and including a first battery module disposed on the tray and a second battery module stacked on the first battery module; a second module cooling plate disposed outside of the second battery module, and including a first bottom plate and a first side plate; and a first side heat-conducting plate disposed at an outer side of the first side plate and heat-conductively connected therewith, wherein both the first bottom plate and the first side plate have a heat pipe disposed therein respectively, the heat pipes of the first bottom plate and the first side plate are in communication with each other; and the first side heat-conducting plate has a heat pipe disposed therein and heat-conductively connected to the tray.
Abstract:
A battery cooling plate assembly includes: a lower cooling plate, an upper cooling plate, having a passage molding portion, and a coolant passage defined between the lower cooling plate and the passage molding portion of the upper cooling plate; wherein the passage molding portion of the upper cooling plate has an edge connected with the lower cooling plate via electromagnetic pulse welding. The coolant passage may be formed at the same time by electromagnetic pulse welding, which may cancel the step of stamping, thus may decrease manufacturing cost of the battery cooling plate assembly.
Abstract:
An electric connector and a battery comprising the same are provided. The electric connector (3) comprises a fixing part and an extension part (32) connected to the fixing part. The fixing part includes at least two holding portions (31) each configured to hold a tab of a winding core of a battery respectively, and a connection portion (33) configured to connect the two adjacent holding portions. With the electric connector, the thickness of the positive tab and negative tab of a battery is reduced and the soldering is easy, thus reducing the sealing-off or false soldering and increasing the rate performance of the battery.
Abstract:
A single cell (1) comprises a shell, a cover board (2) and an electric core (5). The cover board (2) is connected with the shell in a sealed manner. The electric core (5) is accommodated in the shell, at least two electrode terminals having the same polarity penetrate through the cover board (2) respectively. A power battery pack comprises a plurality of single cells as described above. The single cell and battery pack have improved rate discharging characteristics, especially welding problems may be solved and the manufacturing process may be simplified.
Abstract:
A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board (4) sealing an open end of the shell; an electrode core (1) accommodated inside the shell; an electrode terminal (2) penetrating through the cover board (4) with a first end portion (21) connected with the electrode core (1) inside the shell, a second end portion (23) outside the shell and a middle portion (22) connected between the first end portion (21) and the second end portion (23) penetrating through the cover board (4) in an insulating manner. The first end portion (21) and the second end portion (23) may be formed by a plurality of flexible conductive members (231,211) connected together.
Abstract:
A battery system comprising a battery pack, in the battery pack there are a plurality of cells, which are electrically connected by physical contact (1200) between electrical terminals of adjacent cells (300). A resistive heater (1205) is attached to at least some of the electrical terminals in the battery pack to thereby warm the cells to a more optimum operating temperature in response to a sensed temperature.