Indian Navy’s Kalvari Submarines to Revolutionize with Indigenous Lithium-Ion Batteries


News in Brief: India’s naval modernization takes a monumental leap as the Indian Navy plans to equip its follow-on Kalvari class submarines with indigenous lithium-ion battery technology. To secure the necessary lithium resources, discussions are underway with Bolivia, Chile, and Argentina in the ‘Lithium Triangle.’ This move follows global trends, with Japanese and South Korean navies already adopting lithium-ion batteries for their submarines. Furthermore, India is considering a repeat order of Kalvari class submarines with air-independent propulsion systems, aligning with its vision for the next 25 years. This technology upgrade promises enhanced endurance and operational capabilities for the Indian Navy’s submarine fleet.


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