Group balanced control device and method for energy-storage liquid metal battery
A liquid metal battery and equalization control technology, applied in the field of electrochemical energy storage, can solve the problems of large nonlinear resistance current, difficult active equalization control, large equalization energy consumption, etc., so as to reduce the charge and discharge current and prolong the self-equalization time. , to achieve the effect of high current balance
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[0074] Such as figure 1 As shown, a liquid metal battery balance control device for energy storage provided by the present invention includes N liquid metal battery cells connected in series, a voltage detection module, a balance control module, and a balance circuit module.
[0075] The liquid metal battery unit is composed of 6 liquid metal battery cells with a theoretical capacity of 20Ah obtained through screening and cascade utilization. The 6 liquid metal batteries contained in each battery unit are placed in an incubator, and N liquid metal battery units are connected in series through the leads outside the incubator.
[0076] The voltage detection module is used to detect the terminal voltage data of N liquid metal battery cells, and transmit the voltage data to the balance control module.
[0077] The equalization control module receives the voltage data from the voltage detection module, selects the equalization timing and equalization object according to the voltag...
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