破解“里程焦虑”，全固态电池仍需时日

Core Insights - "Range anxiety" is a critical pain point for the development of electric vehicles, and all-solid-state batteries are seen as a potential solution to this issue [1] Group 1: Differences Between All-Solid-State Batteries and Lithium-Ion Batteries - The main difference between all-solid-state batteries and traditional lithium-ion batteries is the replacement of the electrolyte and the optimization of electrode materials [2] - All-solid-state batteries utilize non-flammable solid electrolytes instead of liquid organic electrolytes, which enhances safety and allows for higher capacity electrode materials [2] - The structure of traditional lithium-ion batteries includes graphite anodes and lithium iron phosphate or ternary cathodes, while all-solid-state batteries use solid electrolyte membranes for lithium ion transport [2] Group 2: Enhancing Electric Vehicle Range - "Range anxiety" stems from the low energy density of current lithium-ion batteries, which limits the amount of energy they can store given size and weight constraints [3] - All-solid-state batteries can utilize higher theoretical capacity electrode materials due to the stability and safety of solid electrolytes, potentially leading to a significant increase in energy density [3] - Theoretically, all-solid-state batteries could enable electric vehicles to achieve a range exceeding 1000 kilometers, although challenges in scaling production remain [3] Group 3: Challenges to Large-Scale Adoption - The research and development of all-solid-state batteries are still in the early stages, with significant differences in manufacturing processes compared to lithium-ion batteries [4] - Key challenges include high material and processing costs, as well as the need for specialized equipment and strict environmental controls for the production of solid electrolytes [5] - The stability of the solid-solid interface in all-solid-state batteries poses challenges due to volume changes during charge and discharge cycles, necessitating further research into the electrochemical and mechanical properties of solid electrolytes [6]