USE OF LITHIUM SECONDARY ELECTROCHEMICAL CELLS CONTAINING A BLEND OF A LITHIUM NICKEL OXIDE AND A LITHIUM MANGANESE IRON PHOSPHATE FOR AUTOMOTIVE APPLICATIONS

USE OF LITHIUM SECONDARY ELECTROCHEMICAL CELLS CONTAINING A BLEND OF A LITHIUM NICKEL OXIDE AND A LITHIUM MANGANESE IRON PHOSPHATE FOR AUTOMOTIVE APPLICATIONS

The use of a blend of a lithium nickel oxide and a lithium manganese iron phosphate as an active material composition in the cathode of a lithium secondary electrochemical cell for automotive applications, such as hybrid and electric vehicles. This blend allows decreasing the porosity of a lithium m...

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Bibliographische Detailangaben
Hauptverfasser: GOUSSET, Cédric, TESSIER, Cécile, KAMEN, Nechev, BERNARD, Patrick, MARGEZ, Carine, CHEN, Xilin, HERREYRE, Sylvie
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:The use of a blend of a lithium nickel oxide and a lithium manganese iron phosphate as an active material composition in the cathode of a lithium secondary electrochemical cell for automotive applications, such as hybrid and electric vehicles. This blend allows decreasing the porosity of a lithium manganese iron phosphate-based cathode. It also allows improving the detectability of a gas release in the cell in case of an abnormal operation of the cell. It allows lowering the cell impedance at a low state of charge, typically less than 30 %, and reducing the impedance increase of the cell during the cell lifespan.