This product, being a consumable item, is made of lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It features high energy density, long service life, high rated voltage, and very low self-discharge rate. Additionally, it is environmentally friendly. Throughout its production, use, and disposal, it does not contain or generate any toxic heavy metal elements or substances such as lead, mercury, or cadmium.