"Critical mineral dependence is a strategic vulnerability for India's energy transition. Examine how indigenous battery chemistries can mitigate this risk." (10M)

India's energy transition rests on batteries, but lithium, cobalt and nickel value chains are concentrated in a few countries — Chile, DRC, Australia, China. The Union Cabinet's National Critical Mineral Mission (2025) itself frames import dependence as a self-reliance problem [3], making alternative chemistries a strategic, not merely scientific, question.

Why the dependence is a vulnerability

• Supply concentration: Li, Co and Ni extraction and refining sit in a handful of geographies, exposing India to price shocks and export controls [3].
• Scale of exposure: 500 GW non-fossil capacity by 2030 needs vast stationary storage; every imported cell deepens the dependence.
• Cost and safety: Li-ion uses flammable organic electrolytes and dry-room manufacturing, raising both CAPEX and fire risk in grid-scale installations [1].

How indigenous battery chemistries mitigate the risk

• Zinc as a substitute: Aqueous Zinc-Ion Batteries (AZIBs) use an abundant, cheap, non-toxic, domestically mined metal with a water-based electrolyte — no imported critical mineral core [2].
• Frugal problem-solving: DST-supported researchers developed an electrolyte additive using interface engineering to suppress zinc dendrites, the hydrogen evolution reaction and corrosion — sidestepping costly material redesign [1].
• Demonstrated performance: CeNS Bengaluru's sulfur-vacancy 1T-MoS₂ cathode achieved 97.91% capacity retention over 500 cycles at 99.7% Coulombic efficiency [2].
• Institutional depth: DST autonomous bodies (CeNS, INST Mohali) show a working pipeline from frontier materials research to deployable clean-energy technology [1][2].

Limits to note Zinc chemistries suit stationary grid storage, not the high energy-density demands of electric mobility; laboratory cycle life must still survive commercial scale-up.

Indigenous chemistries therefore reduce, rather than remove, mineral vulnerability — but they cover exactly the storage segment renewables need most. Pairing NCMM exploration with sustained public R&D funding under ANRF and ACC-PLI manufacturing support would convert this laboratory advantage into genuine energy self-reliance, advancing both Atmanirbhar Bharat and the net-zero 2070 pledge.