午间涨跌停股分析：52只涨停股、5只跌停股，固态电池概念活跃，天际股份2连板

Group 1 - A-shares experienced significant activity with 52 stocks hitting the daily limit up and 5 stocks hitting the limit down on September 29 [1] - The nickel concept stocks were notably active, with Boqian New Materials reaching the daily limit up [1] - Battery-related stocks showed strength, with Yicheng New Energy achieving two consecutive limit ups and Kelun Electronics hitting the daily limit up [1] - Solid-state battery concept stocks also rose, with Tianji Co. achieving two consecutive limit ups, and multiple other companies like Duofluoride and Shida Shenghua hitting the daily limit up [1] Group 2 - ST Fuhua faced a continuous decline with five consecutive limit downs [2] - Other companies such as ST Gaosi and Fuhuang Steel Construction also hit the limit down [2]