Hydrogel electrolytes regulated by hydroxypropyl methylcellulose and hydroxyethyl cellulose for zinc-ion hybrid supercapacitors.
The practical application of zinc-ion hybrid supercapacitors (ZIHSCs) is limited by the trade-off between interfacial stability and ion transport in aqueous electrolytes. Herein, two cellulose ethers with distinct substituent structures, hydroxypropyl methylcellulose (HPMC) and hydroxyethyl cellulose (HEC), were introd...