Abstract: A protected lithium electrode structure for a lithium-air battery includes a negative electrode current collector, a negative electrode active material layer, which is made of a lithium metal, an alloy or a compound mainly containing lithium, which is stacked on the negative electrode current collector, and a separator stacked on the negative electrode active material layer. The negative electrode active material layer is sealed by the separator and the negative electrode current collector. A fine powder capturing layer for fine powder lithium metal produced during charging and discharging is provided between the negative electrode active material layer and the separator.

Abstract: A metal-air battery and a protected anode used therein, which make it possible to prevent the metal such as Li being an anode active material and formed into fine powder from dispersing away from the anode layer, and to improve charging and discharging cycle characteristics, even in the case of a charging and discharging cycle over a long period of time.

Abstract: An objective is to provide an anode composite structure for use in a lithium-air battery to make the lithium-air battery less likely to degrade in charge-discharge performance. Provided is an anode composite structure for a lithium-air battery, including: an anode current collector; an anode layer stacked on the anode current collector, the anode layer being metallic lithium, an alloy containing lithium as a main component, or a chemical compound containing lithium as a main component; and a separator stacked on the anode layer. The anode layer is sealed in by the separator and the anode current collector.

Abstract: A metal-air battery and a protected anode used therein, which make it possible to prevent the metal such as Li being an anode active material and formed into fine powder from dispersing away from the anode layer, and to improve charging and discharging cycle characteristics, even in the case of a charging and discharging cycle over a long period of time.

Abstract: A protected lithium electrode structure for a lithium-air battery includes a negative electrode current collector, a negative electrode active material layer, which is made of a lithium metal, an alloy or a compound mainly containing lithium, which is stacked on the negative electrode current collector, and a separator stacked on the negative electrode active material layer. The negative electrode active material layer is sealed by the separator and the negative electrode current collector. A fine powder capturing layer for fine powder lithium metal produced during charging and discharging is provided between the negative electrode active material layer and the separator.