CHARGE FORWARD: High-Voltage Batteries And MSMEs Can Fuel INDIA'S EV REVOLUTION
Electronics For You|November 2024
A nuanced explanation of low- and high-voltage EV batteries by Dr Gokhale, Vice President for Battery Technology at JSW Energy, illuminates their advancements and influence. The essential role of MSMEs and academia in developing a strong EV ecosystem emerges, marking their significance for India's push towards self-reliance in this innovative field.
CHARGE FORWARD: High-Voltage Batteries And MSMEs Can Fuel INDIA'S EV REVOLUTION

Dr Gokhale, can you explain the difference between low-speed eV batteries and high-speed, highvoltage eV batteries, perhaps with an example?

Typically, low-voltage batteries are defined as those up to 48 volts, while high-voltage batteries exceed this threshold. This distinction is fundamental in electrical engineering studies. The critical difference lies in the electron transport between the anode and cathode during energy generation, which can be stored in various forms, such as batteries or supercapacitors.

Are most vehicles in india equipped with low- or high-voltage systems?

Most vehicles in India, particularly two-wheelers and three-wheeler autos, use low-voltage systems around 48 volts. Brands like Ola, Ampere, Bgauss, and Bajaj predominantly use these low-voltage batteries.

Which type of battery do you consider safer for electric vehicles?

Both types have their risks if not handled properly. Safety largely depends on the quality of the battery management system (BMS), which is crucial for preventing issues like thermal propagation that can lead to fires. In India, regulatory measures like AIS 156 for materials traceability and AIS 038 for vehicles have been introduced to enhance safety by ensuring that thermal propagation in batteries is contained.

Are the components used in lowvoltage and high-voltage EV batteries the same, or are there significant differences?

There are significant differences, particularly in the wiring harnesses, fuses, and connectors, which must handle higher voltages, such as 350, 650, or 800 volts. Low-voltage components cannot be used for high-voltage applications due to their lower current-carrying capacity, which makes them susceptible to damage during operation.

This story is from the November 2024 edition of Electronics For You.

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This story is from the November 2024 edition of Electronics For You.

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