Nature Communications 14, Article number: 3975 (2023) Cite this article Metal negative electrodes that alloy with lithium have high theoretical charge storage capacity and are ideal candidates for developing high-energy rechargeable batteries.
Metal negative electrodes that alloy with lithium have high theoretical charge storage capacity and are ideal candidates for developing high-energy rechargeable batteries. However, such electrode materials show limited reversibility in Li-ion batteries with standard non-aqueous liquid electrolyte solutions.
The limitations in potential for the electroactive material of the negative electrode are less important than in the past thanks to the advent of 5 V electrode materials for the cathode in lithium-cell batteries. However, to maintain cell voltage, a deep study of new electrolyte–solvent combinations is required.
Here, we investigate HCs from a mixture of sugars (D-glucose and pectin) and polytetrafluoroethylene (PTFE) as an anode material for PIBs with special attention to the final product's yield and electrochemical properties as a negative electrode for potassium-ion batteries. 2. Materials and methods 2.1. Synthesis
Aluminum-based negative electrodes could enable high-energy-density batteries, but their charge storage performance is limited. Here, the authors show that dense aluminum electrodes with controlled microstructure exhibit long-term cycling stability in all-solid-state lithium-ion batteries.
The incorporation of a high-energy negative electrode system comprising Li metal and silicon is particularly crucial. A strategy utilizing previously developed high-energy anode materials is advantageous for fabricating solid-state batteries with high energy densities.