昆仑化学 技术总监 钮博翔：耐高电压新型溶剂添加剂电解液研究进展

Core Viewpoint - The article discusses advancements in lithium battery technology, particularly focusing on high-voltage electrolyte solutions and the innovations presented at the 2025 Lithium Battery Industry Conference held in Shenzhen, which gathered over 800 attendees to explore core issues in lithium batteries, materials, and equipment [1]. Group 1: Conference Overview - The 2025 Lithium Battery Industry Conference and the 10th Anniversary of the Starting Point Research Institute took place on December 18, 2025, in Shenzhen, featuring discussions on technological breakthroughs and safety challenges in the lithium battery sector [1]. - The conference included a special session on battery technology innovations, where Kunlun Chemical's Technical Director presented research on high-voltage electrolyte solutions [2]. Group 2: Research on Electrolyte Solutions - Kunlun New Materials' presentation covered three main areas: the structural model of electrolytes under high voltage, solutions involving new solvents/additives, and the company's development and industrial layout [4]. - High-voltage electrolytes face challenges such as oxidation decomposition at voltages above 4.2V, leading to adverse reactions that can damage battery components [4]. Group 3: Development Strategies - The company focuses on four design and research aspects: 1. Designing new molecules to improve interface properties [5]. 2. Introducing multifunctional additives to regulate SEI film composition [6]. 3. Expanding the electrochemical window of solvents to enhance high-voltage performance [7]. 4. Ensuring the intrinsic safety of electrolyte components [8]. Group 4: Additive and Solvent Innovations - Effective additives must have low HOMO energy levels to facilitate film formation on the positive electrode, ensuring stability and reducing oxidation decomposition [10][11]. - The use of fluorinated organic solvents enhances the oxidation resistance of electrolytes, allowing them to withstand high-voltage environments [12][14]. - The development of specific additives, such as RNC1015, aims to improve electrochemical stability and performance under high-temperature conditions [16]. Group 5: Company Profile - Kunlun New Materials, established in 2004, has developed significant capabilities in lithium-ion battery electrolyte research, with multiple R&D bases and centers, and holds 150 patents, including 45 invention patents [21]. - The company has expanded its operations to various locations, including Sichuan Yibin and Hungary, with ongoing projects aimed at enhancing its production capacity [22].