This product is a high-activity electrolytic manganese dioxide (γ-crystal form) cathode material developed specifically for aqueous zinc-ion battery applications. As a primary active component in positive electrodes, it offers a combination of high tap density, substantial theoretical capacity, and favorable redox potential, alongside low material cost and enhanced safety characteristics. The γ-crystalline structure contributes to its electrochemical performance, making it suitable for fabricating electrode sheets—such as those on steel foil substrates—for advanced battery research. The material is supplied in powder form (100 g per unit) and should be handled with standard protective equipment to avoid direct physical contact. It is designed to support high-performance, cost-effective energy storage systems.