图6
测量的a)开路图 ， b)放电极化曲线和相应的功率密度图 ， c)不同电流密度下的放电曲线 ， 以及d)分别基于PAA-Fe3+/NH4Cl和PAA-Fe3+-的FSZAB的恒电流放电曲线CS/NH4Cl HEs；e)电流密度为5 mA cm-2时的恒电流放电-充电测试（插图照亮了同期的弯曲-恢复变形循环测试）；基于f) PAA-Fe3+/NH4Cl HE和g)PAA-Fe3+-CS/NH4Cl HE的FSZABs在不同弯曲恢复变形循环后的EIS光谱；总结相应的h)电荷转移电阻和i)不同弯曲恢复变形循环后样品的等效串联电阻 。
表1.该工作与目前报道的最先进的柔性固态锌空气电池的性能比较
| Catalyst | Electrode structure | Electrolyte | Open circuit voltage | Specific capacity | Power density | Durability | Flexibility evaluation | Ref. |
| YSSHs-NSC-Co9S8 | Sandwich | Neutral PAA-Fe3+-CS/NH4Cl HE | 1.45 V | 719 mAh g?1 | 55.4 mW cm?2 | 120 h 5 mA cm?2 | Allowing repeated bending-recovery deformation up to 360 cycles with voltaic efficiency slightly decreased from 32.8% to 31.6% | This work |
| Co/CNWs/CNFs | Sandwich | Alkaline PAA with KOH | 1.55 V | N.A. | 176 mW cm?2 | 40 h 1 mA cm?2 | Charge/discharge curves remained unchanged at bending angles of 90° and 180° | |
| Co3O4-xHoNPs@HPNCS-60 | Sandwich | Alkaline PVA with 6 m KOH and 0.02 m Zn(Ac)2 | 1.459 V | 779.36 mAh g?1 | 94.1 mW cm?2 | 16.6 h 3mA cm?2 | N.A. | |
| 1 nm-CoOx/N-RGO | Sandwich | Alkaline PVA with KOH and Zn(Ac)2 | 1.39 V | N.A. | 120 mW cm?2(300 W g?1) | 10 h 6 mA cm?2 | Open-circuit voltage and charge/discharge curves remained almost unchanged between the bending (180°) and non-bending conditions | |
| Co-NCNT | Sandwich | Alkaline PANa with 6 m KOH and 0.2 m Zn(Ac) | 1.45 V | N.A. | 144.6 mW cm?2 | 32 h 5 mA cm?2 | Charge–discharge performances is stable after hundreds of bending-recovery deformation (bent to 90°) | |
| Commercial Co3O4 | Sandwich | Alkaline Porous PVA-5 wt% SiO2 | N.A. | 720.6 mAh g?1 | 62.6 mW cm?3 | 48 h 3 mA cm?3 | GCD performance galvanostatic discharge and rate performance almost remained unchanged at bending angles of 60° and 180° | |
| Co3O4 | Sandwich | Alkaline 2-QAFC with 1 m KOH | 1.3 V | 492 mAh g?1 | 23.62 mW cm?2(2362 mW g?1) | 35 h 250 mA g?1 | Power density almost remained unchanged at bending angles of 60° 90° and 120° | |
| Co3O4/N-rGO | Fiber | Alkaline PVA with 0.15 m KOH | 1.31 V | 550 mAh g?1 | 0.908 mW cm?2(36.1 mWh cm?3) | 25 h 3 mA cm?2 | Charge/discharge curves almost remained unchanged in different shapes (bending recovering and knotting) | |
| Co4N/CNW/CC | Cable | Alkaline PVA with KOH | 1.346 V | N.A. | N.A. | 12 h 0.5 mA cm?2 | Discharge voltage maintained at different bending angles of 30° 60° 90° and 120°推荐阅读
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