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![Recent research on emerging organic electrode materials for energy storage](https://image.oaes.cc/33089a29-5207-48c6-abc0-b60481581076/4373.fig.1.jpg)
Figure 1. Structure formula of some low-cost organic electrode materials. (A) 9, 10-anthraquinone-2, 7-disulphonic acid for flow battery. (B) A redox-active triangular phenanthrenequinone-based macrocycle. (C) 4, 4 -(phenazine-5,10-diyl) dibenzoate. (D) The phenazine material for Zn-organic battery.