배터리 부품에서 지르코니아 세라믹의 장점은 무엇입니까?
With the rapid development of new energy technologies, the demand for high-performance batteries such as lithium batteries and solid-state batteries is increasing day by day. The performance, safety, and lifespan of a battery largely depend on the material selection of its key components. 지르코니아 세라믹 (ZrO ₂) play an important role in battery components due to their excellent physical and chemical properties. this
지르코니아 세라믹의 기본 특성
Zirconia ceramic is a high-performance structural ceramic with the following key characteristics:
-높은 기계적 강도: high hardness, good wear resistance, and can withstand large mechanical stresses.
-뛰어난 화학적 안정성: resistant to acid and alkali corrosion, not easily reacting with electrolyte.
-High melting point (about 2700 ° C): suitable for high temperature environment applications.
-낮은 열전도율: effectively insulating and reducing the risk of battery thermal runaway.
-Ionic conductivity (after doping): can be used for solid-state electrolytes to enhance battery performance.
These characteristics make it an ideal material for key components of batteries.
Application and advantages of zirconia ceramics in battery components
Solid electrolyte (improves safety and energy density)
Problem: Traditional liquid electrolytes are prone to leakage and flammability, posing safety hazards; Solid state batteries require electrolyte materials with high ionic conductivity.
솔루션:
-Doped zirconia (such as yttrium stabilized zirconia YSZ) can serve as a solid electrolyte, providing stable ion transport channels.
-장점:
-High chemical stability, does not react with electrode materials.
-Resistant to high temperatures and reduces the risk of thermal runaway.
-Improve battery energy density and extend cycle life.
Battery separator (enhanced safety)
Problem: Traditional polymer membranes are prone to shrinkage and melting at high temperatures, leading to short circuits.
솔루션:
-Zirconia ceramic coated membranes or all ceramic membranes can significantly improve high temperature resistance.
-장점:
-High temperature resistance (>1000 ° C) to prevent thermal runaway.
-High mechanical strength to avoid lithium dendrite piercing.
-Excellent electrolyte wettability enhances ion transport efficiency.
Electrode material coating (improves stability)
Problem: Electrode materials (such as high nickel cathodes) are prone to structural degradation during cycling, leading to capacity decay.
솔루션:
-Zirconia can be used as an electrode surface coating to reduce side reactions.
-장점:
-Inhibit electrolyte decomposition and reduce interface side reactions.
-Improve the stability of electrode structure and extend battery life.
Battery casing and connectors (corrosion-resistant, high-strength)
Problem: The metal casing is prone to corrosion, while the plastic casing lacks strength.
솔루션:
-Zirconia ceramics can be used for battery casings or critical connecting components.
-장점:
-Resistant to electrolyte corrosion and long-term stability.
-High hardness, impact resistance, and protection of internal structure.
-Good insulation performance to prevent short circuits.
How zirconia ceramics solve industry pain points
Liquid electrolytes are flammable and explosive: solid electrolytes replace them to improve safety
Poor high-temperature stability of diaphragm: Ceramic diaphragm is resistant to high temperatures and prevents thermal runaway
Rapid degradation of electrode materials: surface coating protection, extended lifespan
Metal parts are prone to corrosion: ceramic shells are resistant to chemical corrosion
Risk of lithium dendrite penetration: High hardness ceramic diaphragm blocks dendrite penetration
Zirconia ceramics exhibit significant advantages in key battery components such as solid electrolytes, separators, electrode coatings, and casings due to their high mechanical strength, chemical stability, high temperature resistance, and controllable ion conductivity. It not only solves the safety and lifespan issues of traditional batteries, but also provides key material support for the development of next-generation high-energy density batteries, such as all solid state batteries.
브루드세 세라믹 는 알루미나 세라믹, 지르코니아 세라믹, 질화 규소 세라믹, 질화 알루미늄 세라믹, 실리콘 카바이드 세라믹, 탄화 붕소 세라믹, 바이오 세라믹, 기계 가공 가능 세라믹 등 다양한 고품질 석영 유리를 공급 및 판매합니다. 다양한 세라믹 제품의 맞춤형 요구 사항을 충족할 수 있습니다.