Prices for key battery materials such as lithium, cobalt and nickel have fallen sharply this year as electric vehicle sales in China cool off and a surge in supply hits the market.
今年以來，隨著中國電動汽車銷量降溫以及市場供應激增，鋰、鈷和鎳等關鍵電池材料的價格大幅下跌。
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