Sustainable High-Voltage Batteries Based on Hybrid Cathodes Enabling Dual-Ion Energy Storage - SusHiBatt

Project summary

Currently, rechargeable Li-ion batteries (LIBs) dominate the battery market for mobile electronic devices and are considered the most promising option for electric vehicle (EV) operation and grid energy storage. However, tremendous efforts are still needed to improve energy and power density, fast-charging capability, and lifetime, as well as to reduce manufacturing costs. Dual-ion batteries (DIBs) are an auspicious alternative to LIBs, in which the cathode is replaced by anion intercalation materials (high-voltage up to 5.2 V), while the salt in the electrolyte provides both the cations and anions that are stored in the electrodes. Compared to LIBs, DIBs are particularly advantageous in terms of cycling stability, power-density, and environmental and cost aspects. The project aims to evaluate and demonstrate the new battery concept of DIB. The ALD-coating and the development of suitable electrolytes will reduce electrode and electrolyte degradation at high potentials, respectively.