碳酸锂期货主力合约午后下挫，涨幅缩窄至1%

Group 1 - The core point of the news is that lithium carbonate futures experienced a decline in the afternoon session, with the increase narrowing to 1% after previously rising over 5% [1] Group 2 - The report indicates that the main contract for lithium carbonate futures showed volatility, reflecting market fluctuations [1] - The significant rise of over 5% earlier in the day suggests strong market interest or demand before the subsequent decline [1]