Heat resistant battery and method for charging and discharging the same

A heat resistant battery includes a positive electrode including a positive electrode current collector and a positive electrode active material fixed on the positive electrode current collector, wherein the positive electrode active material includes a sodium-containing transition metal compound ca...

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Bibliographische Detailangaben
Hauptverfasser: Itani, Eiko, Inazawa, Shinji, Sakai, Shoichiro, Numata, Koma, Fukunaga, Atsushi, Nitta, Koji
Format: Patent
Sprache:eng
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Zusammenfassung:A heat resistant battery includes a positive electrode including a positive electrode current collector and a positive electrode active material fixed on the positive electrode current collector, wherein the positive electrode active material includes a sodium-containing transition metal compound capable of electrochemically storing and releasing a sodium ion; a negative electrode including a negative electrode current collector and a negative electrode active material fixed on the negative electrode current collector, wherein the negative electrode active material contains at least one selected from the group consisting of a sodium-containing titanium compound and a non-graphitizable carbon, each of the sodium-containing titanium compound and the non-graphitizable carbon capable of storing and releasing a sodium ion at a lower potential than a potential of the sodium-containing transition metal compound; and a sodium ion-conductive electrolyte provided at least between the positive electrode and the negative electrode, wherein the sodium ion-conductive electrolyte includes a salt of an organic cation having a pyrrolidinium skeleton and a bis(perfluoroalkyl sulfonyl)imide anion.