AIR CATHODE INCLUDING DELTA-MANGANESE DIOXIDE CATALYST

An air cathode for a metal-air battery (e.g., a Li-air battery) including delta-manganese dioxide, is provided. The delta-manganese dioxide is prepared by chemical reaction between potassium permanganate and potassium persulfate. Li-air battery including such cathode including the delta-manganese d...

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Hauptverfasser:	SEMENENKO, DMITRY ALEXANDROVICH, BELOVA, ALINA IGOREVNA, ITKIS, DANIIL MIKHAILOVICH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	An air cathode for a metal-air battery (e.g., a Li-air battery) including delta-manganese dioxide, is provided. The delta-manganese dioxide is prepared by chemical reaction between potassium permanganate and potassium persulfate. Li-air battery including such cathode including the delta-manganese dioxide is also provided. In some embodiments, the Li-air battery includes an anode including lithium metal, and a solid-state electrolyte disposed between the anode and the cathode. L'invention concerne une cathode oxydo-réductrice pour une batterie à métal-air (par exemple, une batterie au lithium-air) comprenant du dioxyde de manganèse delta. Le dioxyde de manganèse delta est préparé par réaction chimique entre du permanganate de potassium et du persulfate de potassium. Une batterie au Li-air comprenant une telle cathode comprenant du dioxyde de manganèse delta est également décrite. Selon certains modes de réalisation, la batterie au Li-air comprend une anode comprenant du lithium métallique, et un électrolyte à l'état solide disposé entre l'anode et la cathode.