电池板块12月15日跌1.74%，恩捷股份领跌，主力资金净流出20.5亿元

Group 1 - The battery sector experienced a decline of 1.74% compared to the previous trading day, with Enjie Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 3867.92, down 0.55%, while the Shenzhen Component Index closed at 13112.09, down 1.1% [1] - A table detailing the individual stock performance within the battery sector was provided [1] Group 2 - In terms of capital flow, the battery sector saw a net outflow of 2.05 billion yuan from main funds, while retail investors contributed a net inflow of 1.664 billion yuan [2] - The table showing the capital flow for individual stocks in the battery sector was also included [2]