It is divided into two categories: new energy battery index ETF and CS battery index ETF. The full name of new energy battery index is CSI new energy battery index, and the full name of CS battery index is CSI battery theme index, which is tracked by ETF. There are two ETFs for lithium batteries because there are two types: new energy battery index ETF and CS battery index ETF. New energy battery index ETF includes battery ETF, battery ETF fund, lithium battery ETF and battery leader ETF.