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    • 6. 发明申请
    • Rechargeable battery with aluminium anode containing a non aqueous electrolyte consisting of an ether as solvent and a lithium salt of an imide
    • 含铝阳极的可充电电池包含由醚作为溶剂组成的非水电解质和酰亚胺的锂盐
    • US20100316914A1
    • 2010-12-16
    • US12484214
    • 2009-06-14
    • Pedro Manuel Brito da Silva Correia
    • Pedro Manuel Brito da Silva Correia
    • H01M6/22H01M6/04
    • H01M4/38H01M4/587H01M10/052H01M10/0565H01M10/0568
    • A rechargeable battery with aluminium anode containing a non aqueous electrolyte consisting of an ether as solvent and a lithium salt of an imideIt is welt known that the ionisation energy of aluminium to Al3+ is about 12 times as big as the ionisation energy of lithium to Li1+. The redox potential however does not reflect this big difference because of the high enthalpy consumed in the formation of aluminium hydroxide when it goes from the anode to the aqueous electrolyte.Also the use of aqueous electrolyte do not allow the aluminium batteries to be rechargeable, because of the very strong bond between the aluminium and the oxygen atom in the electrolyte.We propose now a rechargeable battery where the aluminium ion is connected to the nitrogen atom of an imide which improves the redox potential by reducing the enthalpy of formation of the aluminium-nitrogen bond in the salt contained in the electrolyte.As there are no hydrogen ions in the electrolyte, we found that the addition of a lithium salt of an imide is necessary to improve the characteristics of the battery.Lithium does not participate in the redox process, it just transports the electric current. The cathode may be carbon or can be made of other metals.
    • 包含铝阳极的可充电电池,其包含由醚作为溶剂和亚胺的锂盐组成的非水电解质已经知道,铝与Al 3+的电离能大约是锂对Li1 +的电离能量的约12倍, 。 然而,氧化还原电位没有反映出这种大的差异,因为当从阳极流到水性电解质时,形成氢氧化铝时的高焓消耗。 此外,由于铝和电解质中的氧原子之间的非常强的键,因此使用含水电解质不能使铝电池可再充电。 我们现在提出一种可充电电池,其中铝离子连接到酰亚胺的氮原子上,通过降低电解质中所含的盐中的铝 - 氮键的形成焓来改善氧化还原电位。 由于电解质中没有氢离子,我们发现添加酰亚胺的锂盐是改善电池特性所必需的。 锂不参与氧化还原过程,它只是传输电流。 阴极可以是碳或可以由其它金属制成。