fig8

Figure 8. (A) Photos of succinonitrile (SN) with NaClO₄. (A) Reprinted with permission from Ref.^[31]. Copyright © 2021 Elsevier; (B) Illustration of “point-to-point” and “face-to-face” contact between the cathode and NASICON. (B) Reprinted with permission from Ref.^[35]. Copyright © 2025 Elsevier; (C) XRD patterns of SN with NaClO₄. (C) Reprinted with permission from Ref.^[31]. Copyright © 2021 Elsevier; The electrochemical performance of hybrid Na-CO₂ battery: (D)EIS curves, (E) CV curves, and (F) cycling curves. (G) Compared the key properties of Na-CO₂ battery. (D-G) Reprinted with permission from Ref.^[35]. Copyright © 2025 Elsevier; (H) Future application scenarios of solid-state hybrid Na-CO₂ batteries. (H) Reprinted with permission from Ref.^[31]. Copyright © 2021 Elsevier. NASICON: Na₃Zr₂Si₂PO₁₂; XRD: X-ray diffraction; CV: cyclic voltammetry; EIS: electrochemical impedance spectroscopy; NZSP: Na₃Zr₂Si₂PO₁₂.