Electroplating lithium transition metal oxides

Sci Adv. 2017 May 12;3(5):e1602427. doi: 10.1126/sciadv.1602427. eCollection 2017 May.

Abstract

Materials synthesis often provides opportunities for innovation. We demonstrate a general low-temperature (260°C) molten salt electrodeposition approach to directly electroplate the important lithium-ion (Li-ion) battery cathode materials LiCoO2, LiMn2O4, and Al-doped LiCoO2. The crystallinities and electrochemical capacities of the electroplated oxides are comparable to those of the powders synthesized at much higher temperatures (700° to 1000°C). This new growth method significantly broadens the scope of battery form factors and functionalities, enabling a variety of highly desirable battery properties, including high energy, high power, and unprecedented electrode flexibility.

Keywords: cathode; electroplating; flexible batteries; lithium ion batteries; lithium transition metal oxides.