▎ 摘 要
NOVELTY - The electrode (50) has a protective layer (53) surrounding an active material layer (52) and a current collector (51). The protective layer comprises a graphene compound. The current collector comprises one or more of iron, nickel, cobalt, titanium, and tantalum. USE - Electrode for use as positive or negative electrode for electrical storage apparatus (all claimed), e.g., lithium ion secondary battery. Used in, e.g., portable information terminal, such as a mobile telephone, a smart phone, a notebook-type computer, a portable music player, a digital camera, and a medical device, as well as in clean energy vehicles, e.g., a hybrid vehicle, an electric vehicle, and a plug-in hybrid car. ADVANTAGE - Prevents fall of cycling characteristics due to repeated charging and discharging, raising safety of the electrical storage apparatus. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) an electrical storage apparatus; and (2) an electrode manufacturing method. DESCRIPTION OF DRAWING(S) - The drawing shows the front view and different sectional views of the electrode. Electrode (50) Current collector (51) Active material layer (52) Protective layer (53) Active substances (54)