Battery Cell Grade Sodium Chloride Purification & Supply
The Opportunity
Sodium-ion battery manufacturing at scale requires ultra-pure sodium chloride (NaCl) feedstock with <500 ppm impurities. India has abundant salt but lacks localized purification infrastructure meeting battery-grade specifications. 500+ battery manufacturers will need reliable domestic supply chains rather than importing purified salts from China/Chile.
Market Size
₹180-240 Cr addressable market — based on projected 50 GWh sodium-ion capacity by 2030 × ₹3.6-4.8 Cr/GWh salt input costs
Business Model
B2B supply of battery-grade sodium chloride via reverse osmosis + ion-exchange refineries located near existing salt fields (Rajasthan, Gujarat, Tamil Nadu). Sell under long-term offtake contracts to battery cell manufacturers at ₹15,000-22,000/MT (vs. ₹8,000-12,000 for industrial salt).
1) Salt purification toll processing: ₹80-100 Cr/yr (process 400K MT annually at ₹200-250/MT margin). 2) Direct battery-grade NaCl sales: ₹60-80 Cr/yr at premium margin. 3) Waste brine licensing to chemical companies (caustic soda, chlorine derivatives): ₹20-30 Cr/yr.
Your 30-Day Action Plan
Map existing salt pan operators in Rajasthan/Gujarat and identify 2-3 sites with >100K MT annual capacity; contact battery makers (Ather, Luminous, startups) to validate purity specs and offtake interest.
Engage water treatment equipment vendors (Veolia, Aqua Metals, local players) for RO+IX system quotes and MOUs; identify DST/DSIR subsidy pathways for EV supply chain under Production Linked Incentive (PLI).
Draft environmental clearance scope with state pollution boards (salt processing falls under Schedule 7); model 2-year breakeven with 60% capacity utilization at 3,000 MT/month.
Approach SBI Green Finance / Green Bond issuers for ₹3-4 Cr debt + equity partnership with existing salt cooperatives (GSFC, Tamil Nadu Salt Corporation) to anchor feedstock.
Compliance & Regulatory Angle
Environmental Clearance (EIA) under Schedule 7; Water User Consent from State Water Board; FSSM (Food Safety & Standards) if co-processing food-grade salt; GST 5% (mineral processing). ISO 9001 + ISO 14001 required for battery OEM contracts.
Ready to Act on This Opportunity?
Generate a 7-step execution plan — validate the market, build the MVP, model the financials, map the risks, and ship in 30 days.