A green and efficient strategy for leaching critical metals from spent LiNi x Co y Mn z O 2 cathodes: modulating the dielectric SiO 2 contact-electro-catalytic activity

This work developed a CEC-leaching process for efficient and eco-friendly recycling of spent LIB cathodes, which avoids secondary pollution, reduces energy and reagent consumption, and aligns with green chemistry and circular economy principles.