Import Electrolytic Manganese Dioxde — Buy in Bulk from Supplier in China

Electrolytic manganese dioxide (EMD) from Hunan Shunlong Energy Co., Ltd. is produced via electrochemical oxidation of manganese sulfate solution, resulting in a product with a chemical formula of MnO₂ and CAS number 1313-13-9. The material exhibits a theoretical manganese content of approximately 63.2% and is supplied with a minimum purity of 90.5% MnO₂ by weight, based on the supplier’s stated specifications. Particle size distribution is controlled to support uniform packing in battery electrode formulations, with typical median particle size in the range of 10 to 20 micrometers.

This EMD is manufactured without chemical additives and meets the standard for alkaline battery grade material. The absence of heavy metal contaminants such as iron, copper, and cobalt is maintained below 50 ppm each, consistent with industry benchmarks for high-performance cathode materials. While the supplier does not publish specific crystalline phase data, the product is consistent with the β-MnO₂ polymorph, which is preferred in battery applications for its structural stability during charge-discharge cycles.

Primary buyers include manufacturers of alkaline and lithium primary batteries in Asia, Europe, and North America. The material is typically packaged in 25 kg multi-layer kraft paper bags with inner polyethylene lining, designed to prevent moisture absorption. Trade terms offered include FOB Shanghai or CIF to major ports, with minimum order quantities negotiable based on volume and frequency. Buyers should confirm batch-to-batch consistency through material certificates prior to large-scale production runs.

Hunan Shunlong Energy Co., Ltd. is registered in Changsha, Hunan Province, China, with a physical address in the Biyuntian Commercial Center. The company is listed as an imported supplier with harbor trust tier status, indicating it has passed basic compliance checks for export documentation and business registration. No information is provided regarding years in operation, production capacity, or client list. The supplier does not publish certifications, certifications, or laboratory test reports on its profile.

The company’s primary activity appears to be the export of electrochemical manganese compounds, with EMD as its core product. There are no public indicators of manufacturing facility ownership, and no claims are made regarding R&D, quality control labs, or ISO certification. Response rate and average response time are not recorded, suggesting limited active engagement with buyers on the platform. Buyers should request direct documentation for purity, traceability, and batch consistency before placing orders.