摘要:
An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length Lcore and a width Wcore and each connector has a width Wconnector. The length of the coiled core Lcore, width of the coiled core Wcore, and width of each connector Wconnector have the relationship 0
摘要:
An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length Lcore and a width Wcore and each connector has a width Wconnector. The length of the coiled core Lcore, width of the coiled core Wcore, and width of each connector Wconnector have the relationship 0
摘要:
A battery system having interconnected battery packs is disclosed. Each battery pack includes a plurality of rectangular prismatic shaped cells. Each cell includes a positive terminal at one end and a negative terminal at the other end. The cells are housed in a battery pack housing in a side-by-side manner. The cells may be electrically connected in series so that the positive terminal for a cell extends toward and contacts the negative terminal of an adjacent cell and the negative terminal for the cell extends toward and contacts the positive terminal of another adjacent cell.
摘要:
There is disclosed a core for an electrochemical cell that comprises an anode sheet, a cathode sheet, and a separator sheet disposed between the anode sheet and cathode sheet. The anode sheet, cathode sheet, and separator sheet are wound to form a flattened coil structure. The flattened coil structure has opposed flattened sides and opposed arcuate sides. The anode and cathode sheets terminate at the same or different arcuate sides. Further, the separator sheet may terminate at one of the arcuate sides.
摘要:
A method and a device for controlling battery heating is disclosed. The method comprises: starting battery heating when conditions for starting battery heating are met; and stopping battery heating when conditions for stopping battery heating are met. The conditions for stopping battery heating include at least one of the following: (a) an absorbed energy Q of the battery reaching a predetermined energy QSET; (b) a time period Ti during which a discharging current I of the battery maintains constant (c) the discharging current I starting to decrease when a predetermined time period TSET is reached; and (d) a heating time period T reaching a predetermined maximum heating time period Tmax. The method and the device consider multiple conditions, for example, temperature, discharging current, battery State-of-Charge, heating time, etc. to determine when to stop battery heating, which may further enhance the operating efficiency and lifespan of the battery.
摘要:
A battery system for a vehicle capable of being driven by electric power is disclosed. The vehicle includes at least one motor/generator and a battery system for supplying electrical power to and receiving electrical power from the motor/generator. The battery system includes multiple battery packs, each comprising a plurality of cells. The plurality of cells in each battery pack are electrically connected with one another. Multiple battery pack housings are provided to house the plurality of cells. Each battery pack housing facilitates electrical connection to one or more other battery pack. The system also includes a compartment containing the multiple battery packs in their housings. The compartment facilitates electrical connection to the motor/generator.
摘要:
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.
摘要:
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 a negative terminal of the cell.
摘要:
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.
摘要:
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.