Lithium hexafluoroarsenate (CAS 29935-35-1): Core material for high-performance lithium-ion battery electrolytes

Product Overview

Lithium Hexafluoroarsenate (V), CAS 29935-35-1, is an inorganic lithium salt compound with the chemical formula LiAsF₆ and a molecular weight of 195.85. The material exists in the form of a white crystalline powder with a melting point of 349°C. It is soluble in water and has high ionic conductivity, excellent thermal stability and electrochemical window. It is widely used in lithium-ion batteries, supercapacitors and solar cells.

As an electrolyte solute lithium salt, its performance is close to that of lithium hexafluorophosphate (LiPF₆), but it performs better in negative electrode film formation performance (about 1.15 V vs. Li+/Li) and SEI film stability, and is particularly suitable for the research and development of high energy density battery systems.

Core advantages and technological innovations

1. Excellent electrochemical performance

High ionic conductivity: ensure efficient transmission of lithium ions during charging and discharging, and improve battery rate performance.

Wide electrochemical window: support higher voltage battery design and extend cycle life4.

Strong thermal stability: withstand extreme temperature environments and reduce the risk of thermal runaway of batteries6.

2. Technical parameters and purity guarantee

Purity level: provide multiple specifications from 98% (conventional industrial grade) to 99.9% metals basis (high-end research grade) to meet the needs of different application scenarios.

Strict quality control: passed ISO 9001, ISO 17025 and other international certifications, equipped with advanced testing equipment such as nuclear magnetic resonance (NMR) and liquid chromatography-mass spectrometry (UPLC-MS) to ensure batch consistency.

Market prospects and application areas

1. New energy industry drives demand growth

Global lithium-ion battery production continues to rise, and China's production will exceed 400GWh in 2023 (+43% year-on-year), driving the market demand for lithium hexafluoroarsenate as a key electrolyte material.

It is estimated that by 2029, the market size of lithium hexafluoroarsenate in China will reach 9.24 billion yuan, with a significant compound annual growth rate (CAGR).

2. Diversified application scenarios

Lithium-ion batteries: optimize electrolyte formulation, improve energy density and safety, suitable for electric vehicles (EV) and energy storage systems.

Supercapacitors: enhance fast charging and discharging capabilities, suitable for smart grids and renewable energy storage.

Research field: as a new electrolyte material, explore solid-state batteries and next-generation energy storage technologies.

Supply Chain and Sustainable Development

1. Large-scale production capacity

Relying on a 28,000 square meter modern production base, the whole chain from raw materials (lithium carbonate, hydrofluoric acid) to finished products can be controlled, and the annual production capacity covers orders from tons to hundreds of kilograms.

Provide 5g to 25g small packages and customized large specifications to flexibly respond to customer needs5.

2. Environmental protection and safety commitment

Adopt green production processes to reduce the generation of highly toxic by-products such as As (III) and comply with REACH and RoHS standards.

Provide a complete MSDS (Material Safety Data Sheet) and hazardous chemicals transportation plan (UN 1557, Class 6.1) to ensure global compliance delivery.

Why choose us?

Technology leadership: We have 2 national R&D centers, have synthesized more than 10,000 chemical building blocks, and obtained more than 20 lithium salt-related patents.

Global layout: Dual operation centers in Shanghai and the United States, supporting 48-hour rapid response and localized services.

Customer testimony: We serve more than 500 scientific research institutions and new energy companies around the world, and our products have been cited in top journals such as Nature and Science.

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