图8 单电池寿命测试前后电压-电流和功率密度-电流曲线 Fig. 8 The single cell performance of PtCa, PtWO 3 -C without heat-treatment b and with heat-treatment at 250℃ in N 2 flowc before and after the life test 10 h Under the condition of =75℃, =85℃, T cell =70℃, =0.3 MPa, =0.28 MPa, =20 mLmin, =35 mLmin |