Pushback to lithium mining grows in the Andes A method known as direct extraction is better for the environment, but has yet to prove itself economical.

Once much of the water has evaporated, the concentrated brine solution left over is further processed to extract the lithium. The next most common method of lithium extraction is hard rock mining.

The United States is home to dozens of mines. Some extract simple copper or iron. The overburden often contains important raw ...

Redwood Materials and Caterpillar strike a deal to recycle lithium-ion batteries from CAT's electric mining equiptment.