Abstract: A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.

Abstract: A method for generating a data diagram is provided, including: obtaining a first data of each cell in a battery pack during a charge and discharge cycle of the battery pack; calculating a rated capacity and a dischargeable electric quantity of each cell based upon the data obtained; and generating a first data diagram for every cell of the battery pack based upon the rated capacity and the dischargeable electric quantity of each cell. A method for managing the battery pack based on the data diagram is further provided.

Abstract: A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.

Abstract: A method for generating a data diagram is provided, including: obtaining a first data of each cell in a battery pack during a charge and discharge cycle of the battery pack; calculating a rated capacity and a dischargeable electric quantity of each cell based upon the data obtained; and generating a first data diagram for every cell of the battery pack based upon the rated capacity and the dischargeable electric quantity of each cell. A method for managing the battery pack based on the data diagram is further provided.

Abstract: Disclosed are a power battery pack safety prevention and control system for an electric vehicle and a control method. The power battery pack safety prevention and control system includes a signal collection device, a master controller, and a stepwise prevention and control actuator. The master controller includes a fault diagnosis device, a cell thermal runway determination device, and a battery pack thermal runway spread determination device which are respectively electrically connected to the stepwise prevention and control actuator and send different control instructions to the stepwise prevention and control actuator. The stepwise prevention and control actuator can perform different levels of prevention and control actions according to different control instructions sent by the fault diagnosis device, the cell thermal runway determination device, and the battery pack thermal runway spread determination device.

Abstract: A charging apparatus includes a heat exchange pipeline, and a refrigerant liquid output pipe and a refrigerant liquid input pipe, which are connected to the heat exchange pipe. The charging apparatus can ensure a vehicle battery can be charged at an optimal temperature range, thereby reducing a charging time of the charging apparatus.

Abstract: The present disclosure relates to methods for making a reference electrode and a lithium ion battery having the reference electrode. The reference electrode obtained has a long service life, moreover, the manufacturing process is simple and can meet the industrial production requirements, making the production and the application of the lithium-ion battery with the reference electrode possible.

Abstract: A method for forecasting thermal runaway safety of a full battery by a computer is provided and including receiving a self heat generation onset temperature T0 of a first power battery, wherein the first power battery is a half cell; calculating a maximum temperature Tmax of thermal runaway of the first power battery based on a thermal runaway reaction kinetic model stored in the computer, calculating a maximum temperature rise ?T by making difference between the maximum temperature Tmax and the self heat generation onset temperature T0; and judging the thermal runaway safety of the first power battery by the relationship between the self heat generation onset temperature T0 and the maximum temperature rise ?T.

Abstract: A method for forecasting thermal runaway safety of a full battery by a computer is provided and including receiving a self heat generation onset temperature T0 of a first power battery, wherein the first power battery is a half cell; calculating a maximum temperature Tmax of thermal runaway of the first power battery based on a thermal runaway reaction kinetic model stored in the computer, calculating a maximum temperature rise ?T by making difference between the maximum temperature Tmax and the self heat generation onset temperature T0; and judging the thermal runaway safety of the first power battery by the relationship between the self heat generation onset temperature T0 and the maximum temperature rise ?T.