The Core Problem with EVs Today
For years, the electric vehicle revolution has felt just out of reach for the average Indian buyer. While the benefits are clear—lower running costs, zero emissions, and a quieter ride—the upfront cost has been a major barrier. The single most expensive
component in an EV is its battery pack, which has traditionally relied on lithium-ion technology. Lithium, along with other essential materials like cobalt and nickel, is expensive and has a complex global supply chain concentrated in just a few countries. This reliance on imported, costly materials has kept the price of even the most basic electric cars stubbornly high, often pushing them beyond the budget of the mass market.
Enter Sodium: The Abundant Alternative
This is where sodium-ion (Na-ion) batteries come in. The basic principle is similar to their lithium-ion counterparts: ions move between a cathode and an anode to store and release energy. The game-changing difference is the core material. Sodium is one of the most abundant elements on Earth, found everywhere in our oceans and salt flats. This incredible abundance makes it significantly cheaper than lithium. By replacing expensive lithium and cobalt with common salt-derived sodium, and using cheaper aluminium instead of copper for certain components, the raw material cost of the battery can be slashed, potentially reducing the overall cost of an EV by 10% or more.
Performance: The Range vs. Cost Trade-Off
Of course, there are trade-offs. The primary drawback of current sodium-ion technology is lower energy density. In simple terms, a sodium-ion battery of the same size and weight stores less energy than a lithium-ion one, which translates to a shorter driving range. While the latest sodium-ion batteries from industry leader CATL are catching up to the performance of entry-level lithium iron phosphate (LFP) batteries, they are not yet suitable for long-range, high-performance luxury EVs. However, for the entry-level segment—city cars and daily commuters where a range of 250-400 km is more than sufficient—this compromise is perfectly acceptable, especially given the significant cost savings. Furthermore, sodium-ion batteries offer distinct advantages, including excellent performance and faster charging speeds in extreme cold, a major issue for lithium-ion packs, and superior thermal stability, which enhances safety.
Who is Making it Happen?
The technology is moving from the lab to the showroom faster than many expected. Chinese giants like CATL and BYD are at the forefront, with CATL partnering with Changan Automobile to launch the world's first mass-produced passenger EV powered by sodium-ion batteries, set to hit the market in 2026. In India, the opportunity has not gone unnoticed. Reliance Industries acquired UK-based sodium-ion pioneer Faradion for £100 million and is fast-tracking the commercialisation of the technology. The company plans to build a giga factory for cell manufacturing in Jamnagar, with production targeted to begin in 2026. The government’s Production Linked Incentive (PLI) scheme for battery manufacturing is chemistry-neutral, creating a policy environment that supports investment in this promising alternative. Indian research institutions are also contributing, with scientists developing fast-charging and long-lasting sodium-ion cells.
The Road to the Sub-₹10 Lakh EV
The combination of lower-cost batteries and a push for local manufacturing is the key to unlocking the sub-₹10 lakh EV in India. Sodium-ion technology isn't meant to replace lithium-ion entirely but to complement it. It creates a 'dual-chemistry' ecosystem where premium cars continue to use high-density lithium batteries for maximum range, while affordable, entry-level cars for urban mobility can leverage the cost, safety, and durability benefits of sodium-ion. This segmentation allows manufacturers to finally address the most price-sensitive part of the market without compromising on the basic utility of an electric vehicle. It aligns perfectly with India's goals for energy security by reducing dependence on lithium imports and supports the 'Atmanirbhar Bharat' mission by building a domestic supply chain around a resource India has in abundance.
