热点回应｜破解“里程焦虑”，全固态电池仍需时日

Core Viewpoint - "Range anxiety" is a core pain point in the development of electric vehicles, and all-solid-state batteries are seen as a potential solution to this issue [1] Group 1: Differences from Lithium-ion Batteries - The main difference between all-solid-state batteries and traditional lithium-ion batteries is the replacement of the electrolyte and optimization of the electrode materials [2] - All-solid-state batteries use non-flammable solid electrolytes instead of liquid organic electrolytes, which enhances safety and energy density [2] Group 2: Enhancing Electric Vehicle Range - The low energy density of current lithium-ion batteries is the fundamental reason for range anxiety in the electric vehicle industry [3] - All-solid-state batteries can utilize higher theoretical capacity electrode materials, leading to a significant increase in energy density and potentially allowing electric vehicles to achieve a range of over 1000 kilometers [3] Group 3: Challenges to Large-scale Application - The research and development of all-solid-state batteries are still in the early stages, facing several key technical challenges for large-scale application [4] - High-performance solid electrolytes and the cost of raw materials pose significant challenges, requiring breakthroughs in low-cost synthesis and preparation technologies [5] - The stability of the solid-solid interface in all-solid-state batteries is a major challenge due to volume changes during charge and discharge cycles, necessitating in-depth research on the electrochemical and mechanical properties of solid electrolytes [5]