Herein, we report the first use of highly porous azo-linked polymers (ALPs) as a new redox-active electrode material for rechargeable sodium-ion batteries.  ALPs are highly cross-linked polymers and therefore eliminate the solubility issue of organic electrodes in common electrolytes, which is prominent in small organic molecules and leads to fast capacity fading.  Moreover, the high surface area coupled with the π-conjugated microporous nature of ALPs facilitates electrolyte adsorption in the pores and assists in fast ionic transport and charge transfer rates. 
ALPs
Herein, we report the first use of highly porous azo-linked polymers (ALPs) as a new redox-active electrode material for rechargeable sodium-ion batteries.  ALPs are highly cross-linked polymers and therefore eliminate the solubility issue of organic electrodes in common electrolytes, which is prominent in small organic molecules and leads to fast capacity fading.  Moreover, the high surface area coupled with the π-conjugated microporous nature of ALPs facilitates electrolyte adsorption in the pores and assists in fast ionic transport and charge transfer rates. 
ALPs
Herein, we report the first use of highly porous azo-linked polymers (ALPs) as a new redox-active electrode material for rechargeable sodium-ion batteries.  ALPs are highly cross-linked polymers and therefore eliminate the solubility issue of organic electrodes in common electrolytes, which is prominent in small organic molecules and leads to fast capacity fading.  Moreover, the high surface area coupled with the π-conjugated microporous nature of ALPs facilitates electrolyte adsorption in the pores and assists in fast ionic transport and charge transfer rates. 
ALPs