固态电池设备的瓶颈-等静压 | 投研报告

Core Insights - The core issue for enhancing performance and mass production of solid-state batteries is the densification of the solid-solid interface, which can be improved using isostatic pressing technology [1][2] Summary by Categories Isostatic Pressing Technology - Isostatic pressing technology effectively eliminates internal voids in battery cells, enhances contact between internal components, improves conductivity, increases energy density, and reduces volume changes during operation [1][2] Equipment Specifications - Cold isostatic press operates at pressures of 100-630 MPa at room temperature without heating [3] - Warm isostatic press typically operates at temperatures not exceeding 500°C with pressure ranges up to around 300 MPa [4] - Hot isostatic press applies uniform pressure (100-200 MPa) while utilizing a furnace to apply high temperatures of 1000-2200°C [4] Company Developments - Naconor plans to focus on solid-state battery core equipment by 2025, including key technologies such as dry electrode, lithium band rolling, electrolyte film formation, transfer, composite, and isostatic pressing; the isostatic equipment is still in the R&D and validation stage [5] - AVIC's subsidiary, Chuanxi Machinery, has produced over 1500 units of various specifications of isostatic equipment, which are widely used in key defense and high-tech fields such as aviation, aerospace, and nuclear industry [5]