中国科学家用蘸墨汁书写后的纸张作为空气电极,设计并组装了轻型、柔性、能折叠的可充电锂空气电池如图甲,电池的工作原理如图乙。下列有关说法正确的是 A .放电时,纸张中的纤维素作为锂电池的负极 B .充电时,若阳极放出 1mol O 2 ,则有 4mol e − 回到电源正极 C .开关 K 闭合给锂电池充电, X 对应充电电极上的反应为 Li + +e − =Li D .放电时, Li + 由正极经过有机电解质溶液移向负极
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