02729nas a2200229   4500008004100000022001400041245014700055210006900202260000800271490000700279520182100286653002502107653004402132653001602176653004502192653003602237100001902273700004002292700001702332700002402349856012602373       2024                        eng d  a1613-681000aPhytic acid customized hydrogel polymer electrolyte and prussian blue analogue cathode material for rechargeable zinc metal hydrogel batteries0 aPhytic acid customized hydrogel polymer electrolyte and prussian  cAUG0 v203 a<p>
	Zinc anode deterioration in aqueous electrolytes, and Zn dendrite growth is a major concern in the operation of aqueous rechargeable Zn metal batteries (AZMBs). To tackle this, the replacement of aqueous electrolytes with a zinc hydrogel polymer electrolyte (ZHPE) is presented in this study. This method involves structural modifications of the ZHPE by phytic acid through an ultraviolet (UV) light-induced photopolymerization process. The high membrane flexibility, high ionic conductivity (0.085 S cm-1), improved zinc corrosion overpotential, and enhanced electrochemical stability value of approximate to 2.3 V versus Zn|Zn2+ show the great potential of ZHPE as an ideal gel electrolyte for rechargeable zinc metal hydrogel batteries (ZMHBs). This is the first time that the dominating effect of chelation of phytic acid with M2+ center over H-bonding with water is described to tune the gel electrolyte properties for battery applications. The ZHPE shows ultra-high stability over 360 h with a capacity of 0.50 mAh cm-2 with dendrite-free plating/stripping in Zn||Zn symmetric cell. The fabrication of the ZMHB with a high-voltage zinc hexacyanoferrate (ZHF) cathode shows a high-average voltage of approximate to 1.6 V and a comparable capacity output of 63 mAh g-1 at 0.10 A g-1 of the current rate validating the potential application of ZHPE. A novel phytic acid (PA) modulated zinc hydrogel polymer electrolyte (ZHPE) as an efficient electrolyte and separator for rechargeable Zn-metal hydrogel batteries (ZMHB) is designed. The zincophilic, and hydrogen bonding characteristics of ZHPE help in regulating uniform dendrite-free Zn-deposition over the Zn anode surface. ZHPE in combination with the developed high-voltage zinc hexacyanoferrate (ZHF) cathode performs as an efficient ZMHB. image</p>
10ahigh voltage cathode10ahigh-conducting gel polymer electrolyte10aphytic acid10arechargeable Zn-metal hydrogel batteries10aZn hydrogel polymer electrolyte1 aDilwale, Swati1 aPuthiyaveetil, Priyanka, Pandinhare1 aBabu, Athira1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/phytic-acid-customized-hydrogel-polymer-electrolyte-and-prussian-blue-analogue-cathode