Lithium Sulfide, pure grade
Li2S
Lithium Sulfide (Li2S) is a high-purity inorganic compound (CAS 12136-58-2) engineered by Albemarle to meet the rigorous material demands of advanced energy storage technologies. With a molecular weight of 45.95 g/mol and an antifluorite crystal structure, this crystalline powder exhibits exceptional electrochemical properties — including high theoretical capacity (1,166 mAh/g) and favorable lithium-ion transport characteristics — that make it an essential building block for next-generation battery chemistries. Albemarle's pure-grade Li2S is manufactured under tightly controlled conditions to deliver an ultra-low impurity profile, ensuring consistent performance across solid-state electrolyte synthesis, lithium-sulfur cathode fabrication, and other high-value industrial applications.
As the automotive and electric vehicle (EV) industries accelerate the shift toward safer, higher-energy-density batteries, lithium sulfide has emerged as a pivotal precursor for sulfide-based solid-state electrolytes (SSEs) — including argyrodite-type Li6PS5Cl and Li10GeP2S12 (LGPS) systems — which exhibit ionic conductivities rivaling or exceeding those of conventional liquid electrolytes. Beyond its role as an SSE precursor, Li2S serves directly as a high-capacity cathode material in lithium-sulfur (Li-S) batteries, offering nearly four times the theoretical capacity of traditional lithium cobalt oxide cathodes and enabling the extended driving ranges that next-generation EV platforms require. From automotive battery packs and grid-scale renewable energy storage to specialized industrial electrochemical processes, Albemarle's lithium sulfide delivers the material performance needed to power a cleaner energy future.
As one of the world's largest and most vertically integrated lithium producers, Albemarle brings decades of materials expertise and an unmatched commitment to quality to every kilogram of lithium sulfide we produce. Our pure-grade Li2S is characterized by its free-flowing, non-dusting form and high lot-to-lot consistency — critical attributes for battery manufacturers scaling solid-state electrolyte production lines where even trace-level impurities can compromise cell conductivity and cycle life. Backed by Albemarle's global supply chain, rigorous quality management systems, and ongoing investment in advanced battery materials R&D, our lithium sulfide enables OEMs, cell manufacturers, and research institutions to innovate with confidence, knowing they have a reliable, high-quality lithium sulfide supply partner committed to advancing the energy storage technologies that will define the future of mobility and industry
Applications
Lithium sulfide is used in high performance lithium-ion batteries as a precursor for sulfidic solid-state electrolytes (SSE).
Handling Instructions
The product must be handled in dry, inert atmosphere. Use of personal protective equipment.
Storage Instructions
Keep containers tightly closed in a dry, cool and well-ventilated place. Protect from moisture. Recommended storage temperature: -10 to 40 °C
Legal Disclaimer
The information presented herein is believed to be accurate and reliable but is presented without guarantee or responsibility on the part of Albemarle Corporation and its subsidiaries and affiliates. It is the responsibility of the user to comply with all applicable laws and regulations and to provide for a safe workplace. The user should consider any health or safety hazards or information contained herein only as a guide and should take those precautions which are necessary or prudent to instruct employees and to develop work practice procedures in order to promote a safe work environment. Further, nothing contained herein shall be taken as an inducement or recommendation to manufacture or use any of the herein materials or processes in violation of existing or future patent.