Smelters are scrambling to find alternatives to one of the main raw materials used to make rechargeable batteries, as an export clampdown by dominant producer the Democratic Republic of Congo sends prices soaring.
由于主要生产国刚果民主共和国收紧出口、推高价格，冶炼厂正争相寻找用于制造充电电池的主要原材料之一——钴——的替代品。
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