02212nas a2200277   4500008004100000022001400041245008600055210006900141260000800210300001200218490000700230520131600237653001601553653001401569653002201583653002101605653001101626100001801637700003401655700002001689700002201709700002601731700003001757700003001787856011701817       2025                        eng d  a1613-681000aDiamondoid all-carbon porous aromatic framework host for lithium-sulfur batteries0 aDiamondoid allcarbon porous aromatic framework host for lithiums  cJUN  a25003880 v213 a<p>
	Lithium-sulfur batteries (LSBs) hold incredible potential as next-generation energy storage systems. However, practical applications of LSBs are significantly hindered by several critical challenges. For the first time, scalable all-carbon porous 3D polymers (3DPs) that do not contain heteroatoms or functional groups and do not require post-functionalization are investigated as hosts in lithium-sulfur batteries, demonstrating enhanced cycling stability and overall battery performance. The pyrene-containing 3DP exhibits 75% capacity retention after 600 cycles at 1 C and 52% capacity retention after 1300 cycles at 0.2 C, better than phenyl comprising 3DP. Furthermore, even at higher sulfur loading (4.1 mg cm(-2)) with an electrolyte/sulfur ratio of 5 mu L mg(-1), pyrene 3DP displayed a high capacity of 600 mA h g(-1) and stable performance over 250 cycles with negligible capacity fade. The defined pore structure of 3DPs prevents the migration of polysulfides through physical confinement and the large pi -clouds of 3DPs interact with the negative charge-bearing polysulfides generated in charge-discharge cycles through anion-pi interaction. In this way, The design ensures that the host 3DPs interact with neutral sulfur and anionic polysulfides, resulting in an excellent performance.</p>
10a3D polymers10aBatteries10aLi-Sulfur battery10aporous materials10apyrene1 aKumar, Viksit1 aJavaregowda, Bharathkumar, H.1 aDevasia, George1 aNarayanan, Aswini1 aKrishnamurty, Sailaja1 aKrishnamoorthy, Kothandam1 aBabu, Sukumaran, Santhosh  uhttps://library.ncl.res.in/content/diamondoid-all-carbon-porous-aromatic-framework-host-lithium-sulfur-batteries