Nano-batteries in a carry fluid as power supply: Freeform geometry, superfast refilling, and heat self-dissipation

Аннотация

This letter proposes and analyzes a system composed of many micro- or nano-scale batteries. Each battery is a self-contained Li-ion micro-battery enclosed in an insulating shell, and can charge/discharge wirelessly or through contacts. Thousands of such batteries are carried by an inert fluid to form a power fluid to drive an electric vehicle. This power fluid can be stored in the tank and replaced easily with a fully charged fluid by refilling once its energy is depleted. The system can provide better energy density, higher power density, and extremely fast “charging” within minutes. The architecture eliminates the large over-capacity design in the current battery packs, significantly reducing the weight and cost. It would also enable progressive improvements of vehicle performance by replacing the micro-batteries. The battery system has flexible geometry, and therefore can essentially go into a storage space of any geometry, allowing uniform design of battery configurations for diverse applications