02464nas a2200265   4500008004100000022001400041245019400055210006900249260000800318300001200326490000700338520138600345653004101731653002401772653003001796653003301826653002701859653005301886100004001939700001701979700001901996700002702015700002402042856013202066       2024                        eng d  a1613-681000aCathode|electrolyte interface engineering by a hydrogel polymer electrolyte for a 3D porous high-voltage cathode material in a quasi-solid-state zinc metal battery by in situ polymerization0 aCathodeelectrolyte interface engineering by a hydrogel polymer e  cOCT  a24031580 v203 a<p>
	This work highlights the development of a superior cathode|electrolyte interface for the quasi solid-state rechargeable zinc metal battery (QSS-RZMB) by a novel hydrogel polymer electrolyte using an ultraviolet (UV) light-assisted in situ polymerization strategy. By integrating the cathode with a thin layer of the hydrogel polymer electrolyte, this technique produces an integrated interface that ensures quick Zn2+ ion conduction. The coexistence of nanowires for direct electron routes and the enhanced electrolyte ion infiltration and diffusion by the 3D porous flower structure with a wide open surface of the Zn-MnO electrode complements the interface formation during the in situ polymerization process. The QSS-RZMB configured with an integrated cathode (i-Zn-MnO) and the hydrogel polymer electrolyte (PHPZ-30) as the separator yields a comparable specific energy density of 214.14 Wh kg(-1) with that of its liquid counterpart (240.38 Wh kg(-1), 0.5 M Zn(CF3SO3)(2) aqueous electrolyte). Other noteworthy features of the presented QSS-RZMB system include its superior cycle life of over 1000 charge-discharge cycles and 85% capacity retention with 99% coulombic efficiency at the current density of 1.0 A g(-1), compared to only 60% capacity retention over 500 charge-discharge cycles displayed by the liquid-state system under the same operating conditions.</p>
10acathode-electrolyte interface tuning10adendrite inhibition10aepitaxial zinc deposition10ahydrogel polymer electrolyte10aIn situ polymerization10aQuasi solidstate rechargeable zinc metal battery1 aPuthiyaveetil, Priyanka, Pandinhare1 aTorris, Arun1 aDilwale, Swati1 aKanheerampockil, Fayis1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/cathodeelectrolyte-interface-engineering-hydrogel-polymer-electrolyte-3d-porous-high-voltage02691nas 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