Tsinghua University

Xu-Ning Feng

Xiang-Ming He

Ming-Gao Ouyang

Lan-Guang Lu

Geng Yang

Yue-Jiu Zheng

Xue-Bing Han

Dong-Xu Guo

Li Wang

Si-Qi Zheng

Dong-Sheng Ren

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.

Method for evaluating consistency of battery pack and strategy for balancing battery pack

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.

Method for generating data diagram and method for managing battery pack

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 Tof a first power battery, wherein the first power battery is a half cell; calculating a maximum temperature Tof thermal runaway of the first power battery based on a thermal runaway reaction kinetic model stored in the computer, calculating a maximum temperature rise &#x394;T by making difference between the maximum temperature Tand the self heat generation onset temperature T; and judging the thermal runaway safety of the first power battery by the relationship between the self heat generation onset temperature Tand the maximum temperature rise &#x394;T.

Method and device for forecasting thermal runaway safety of power battery, and a method for making power battery

Growing community of inventors

Beijing, China

Xu-Ning Feng