PROBLEM TO BE SOLVED: To provide a secondary battery which can provide superior battery characteristics.SOLUTION: A secondary battery comprises: a positive electrode; a negative electrode; and a nonaqueous electrolyte. The positive electrode includes a compound containing lithium and oxygen. The nonaqueous electrolyte includes at least one of anions expressed by B(XY)FR, where X represents a divalent linear hydrocarbon group or the like, but the X may be absent; Y represents a cyano group or the like; R represents a monovalent fluorinated linear hydrocarbon group or the like; and x to z are each integers which satisfy the following conditions: x>0, y≥0, z≥0, (x+y+z)=4, and (y+z)>0.
【課題】優れた電池特性を得ることが可能な二次電池を提供する。【解決手段】二次電池は、正極および負極と共に非水電解液を備える。正極は、リチウム酸素含有化合物を含み、非水電解液は、B(XY)xFyRz-で表されるアニオンのうちの少なくとも1種を含む。Xは2価の鎖状炭化水素基等であり、そのXはなくてもよい。Yはシアノ基等であり、Rは1価のフッ素化鎖状炭化水素基等である。x〜zのそれぞれは、x>0、y≧0、z≧0、(x+y+z)=4および(y+z)>0を満たす整数である。【選択図】図1
SECONDARY BATTERY, BATTERY PACK, ELECTRICALLY DRIVEN VEHICLE AND ELECTRIC POWER STORAGE SYSTEM
二次電池、電池パック、電動車両および電力貯蔵システム
2015-06-04
Patent
Electronic Resource
Japanese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / C01B NON-METALLIC ELEMENTS , Nichtmetallische Elemente |
SECONDARY BATTERY, BATTERY PACK, ELECTRICALLY DRIVEN VEHICLE AND ELECTRIC POWER STORAGE SYSTEM
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