此前测得，这类电池的能量密度比锂离子电池低5%至15%，但新材料可大幅改善这一状况。市场需求已呈上升趋势，中国制造商宁德时代（CATL）表示，其钠离子电池的订单量激增。
钠离子电池被认为是锂离子电池的一种更便宜、更可持续的替代方案。锂必须从地下开采，而钠却极其丰富：我们每晚都在用它给晚餐调味。
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