Researchers at the Central Salt and Marine Chemicals Research Institute (CSMCRI) in Bhavanipur, Gujarat, have discovered a pioneering method to extract high-purity lithium from discarded lithium-ion batteries. Often referred to as “white gold,” lithium is a critical component in powering mobile phones, laptops, and electric vehicles. The innovation comes at a time when India is entirely dependent on pure lithium imports, and it aligns strongly with the government’s ‘Atmanirbhar Bharat’ (self-reliant India) mission.
A Cleaner, More Efficient Extraction Method
Unlike traditional methods that extract metals like nickel, cobalt, and manganese first—leading to reduced lithium quality and greater environmental harm—CSMCRI’s new process extracts lithium at the outset and in its purest form. The team uses anthraquinone salt and hydrogen peroxide to separate lithium from the black powder recovered from used batteries. This significantly improves both the efficiency and environmental sustainability of the process.
Addressing Key Challenges in Lithium Recycling
Currently, extracting one ton of pure lithium requires about 28 tons of battery waste. Existing methods are slow, costly, and wasteful—making them unattractive to battery manufacturers. The new technology promises to overcome these challenges by:
*Boosting recovery efficiency
*Minimizing environmental damage
*Delivering up to 97% pure lithium
The breakthrough is especially crucial as India looks to strengthen its domestic lithium supply chain.
Published and Recognized Globally
The discovery has been published in Angewandte Chemie International Edition, a prestigious journal of the German Chemical Society, highlighting its scientific merit and global relevance. According to scientists, the technology could significantly lower India’s lithium import costs and position the country as a leader in sustainable battery recycling.
Transforming Battery Waste into a Valuable Resource
If scaled commercially, the technology could revolutionize the battery recycling industry in India. Battery waste handlers would benefit from better prices, while the environment would be spared from toxic waste and pollution. The innovation also supports India’s ambitious transition toward electric vehicles (EVs) and green energy goals. As reported by india.com, by turning battery waste into a valuable domestic resource, India moves one step closer to energy independence and sustainability.
