Core Insights - The battery sector experienced a significant increase of 3.95% on the previous trading day, with Better Ray leading the gains [1] - The Shanghai Composite Index closed at 4016.33, up 0.7%, while the Shenzhen Component Index closed at 13691.38, up 1.95% [1] Battery Sector Performance - Better Ray (code: 920185) saw a closing price of 35.29, with a remarkable increase of 19.38% and a trading volume of 292,200 shares [1] - Copper Crown Copper Foil (code: 301217) closed at 38.09, up 14.59%, with a trading volume of 1,043,300 shares [1] - Leading Intelligent (code: 300450) closed at 62.75, up 12.80%, with a trading volume of 2,207,800 shares [1] - Other notable performers include: - Keli Yuan (code: 600478) at 7.13, up 10.03% [1] - Zhongyi Technology (code: 301150) at 42.75, up 9.42% [1] - Xiamen Tungsten New Energy (code: 688778) at 87.00, up 9.37% [1] - Changhong Energy (code: 920239) at 37.67, up 9.03% [1] - Naconoer (code: 920522) at 70.26, up 8.74% [1] - Penghui Energy (code: 300438) at 40.49, up 8.52% [1] - Hangke Technology (code: 688006) at 33.96, up 8.26% [1] Capital Flow Analysis - The battery sector saw a net inflow of 6.549 billion yuan from main funds, while retail investors experienced a net outflow of 3.707 billion yuan [2] - The sector's overall performance indicates strong institutional interest despite retail outflows [2]