彻底解决“枝晶”问题 韩国研发新电池：充电12分钟续航804公里！

Core Viewpoint - The collaboration between KAIST and LG Energy Solution has led to the development of a new lithium metal battery electrolyte that enables electric vehicles to charge in 12 minutes and achieve a range of 500 miles (approximately 804.7 kilometers) [2]. Group 1: Breakthrough in Battery Technology - The new lithium metal battery electrolyte claims to have completely resolved the "dendrites" issue that has plagued battery technology [3]. - Unlike mainstream lithium-ion batteries that use graphite anodes, lithium metal batteries utilize pure lithium metal anodes, which significantly increases energy density but also leads to the growth of dendritic lithium crystals during charging [4]. Group 2: Mechanism and Innovation - The research team discovered that dendrite growth is triggered by "uneven interfacial cohesion forces" on the lithium metal surface [5]. - Based on this discovery, the team developed a novel "liquid electrolyte that suppresses cohesion," which has a weaker affinity for lithium ions, ensuring uniform lithium deposition on the anode even during rapid charging, effectively inhibiting dendrite formation [5]. Group 3: Performance and Testing - Experimental data indicates that batteries using this electrolyte perform excellently over more than 350 cycles, capable of charging from 5% to 70% in just 12 minutes [6]. - Modeling confirms that a high-density battery design (with an energy density of 386 Wh/kg) can charge from 10% to 80% in 17 minutes, providing a new pathway for ultra-fast charging and high energy density [6].