ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

The electrochemical apparatus includes a positive electrode plate. The positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on a surface of the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material and a conductive agent, the conductive agent containing secondary particles, where a total sectional area S0 of the secondary particles and a sectional area S1 of the positive electrode active material layer satisfy 0