02691nas a2200289   4500008004100000022001400041245019800055210006900253260000800322490000700330520153400337653002401871653004501895653003601940653004601976100004002022700002602062700002402088700003302112700001702145700002902162700001702191700002302208700002602231700002402257856012002281       2026                        eng d  a1614-683200aSelf-healing hydrogel electrolyte enabled by dynamic polar covalent and noncovalent interactions for high-performance rechargeable zinc-metal batteries: a leap toward sustainable energy storage0 aSelfhealing hydrogel electrolyte enabled by dynamic polar covale  cJAN0 v163 a<p>
	Hydrogel polymer electrolytes with superior multifunctional properties are promising alternatives to aqueous electrolytes for resolving interfacial issues in rechargeable zinc-metal batteries. In this study, an intrinsic self-healing hydrogel polymer electrolyte (PHBC-4) is synthesized, engineered through an integrated approach involving the polar covalent (B &amp; horbar;O bond), hydrogen-bond (polyvinyl alcohol-hydroxypropyl methylcellulose interface), and coordination-type (Zn &amp; horbar;O) interactions to enable self-healing functionality. The PHBC-4 has demonstrated high ionic conductivity (4.6 x 10-2 S cm-1), good oxidative stability (2.3 V vs Zn|Zn2+), a high cation transference number (0.89), superior tensile strength (0.32 MPa), and an impressive healing efficiency of 93% achieved just within 5 min, confirming its robust self-healing capability. In Zn||Zn symmetric cells, it effectively suppresses dendrite growth, ensuring stable cycling for over 1032 h with an areal capacity of 1.0 mAh cm-2 at a current density of 1.0 mA cm-2. When paired with a Zn-doped MnO cathode in the rechargeable homemade pouch cell, the system delivers a high specific capacity of 160 mAh g-1 at 0.10 A g-1 and cycling stability up to 493 charge-discharge cycles at 2.0 A g-1. The self-healing ability of PHBC-4 HGPE is confirmed in a homemade pouch cell via OCV and charge-discharge tests, demonstrating stable performance. The DFT studies confirm molecular-level interactions within the hydrogel heterostructure.</p>
10adendrite inhibition10aflexible rechargeable zinc metal battery10ahigh cation transference number10aself-healing hydrogel polymer electrolyte1 aPuthiyaveetil, Priyanka, Pandinhare1 aKurian, Rachna, Maria1 aSamudre, Nikhil, S.1 aBalasubramanian, Rajalakshmi1 aTorris, Arun1 aPockil, Fayis, Kanheeram1 aBhat, Suresh1 aAjithkumar, T., G.1 aKrishnamurty, Sailaja1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/self-healing-hydrogel-electrolyte-enabled-dynamic-polar-covalent-and-noncovalent