New reaction to recover Li from battery waste, Pg11

Key Highlights:

• A new halometallurgy method can recover lithium from Li-ion battery waste.
• The method involves heating battery materials to transfer lithium into a mix of sodium and potassium chloride salts.
• Up to 96% of lithium can be recovered in the saline solution.

Detailed Insights:

• The halometallurgy process breaks down the cathode's structure into transition metal oxides.
• Molten salts create an oxygen barrier, enabling graphite to reduce the oxides into metallic alloys.
• This method offers a potentially more efficient and environmentally friendly way to recycle lithium from spent batteries, addressing growing concerns about battery waste.

Scientific/Technical Concepts Involved:

• Halometallurgy: A metallurgical process using halide salts at high temperatures to extract metals.
• Cathode: The positive electrode in a battery where reduction occurs.
• Transition Metal Oxides: Chemical compounds composed of transition metals and oxygen.