@article {49687,
	title = {Diamondoid all-carbon porous aromatic framework host for lithium-sulfur batteries},
	journal = {Small},
	volume = {21},
	year = {2025},
	month = {JUN},
	pages = {2500388},
	type = {Article},
	abstract = {<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>
},
	keywords = {3D polymers, Batteries, Li-Sulfur battery, porous materials, pyrene},
	issn = {1613-6810},
	doi = {10.1002/smll.202500388},
	author = {Kumar, Viksit and Javaregowda, Bharathkumar H. and Devasia, George and Narayanan, Aswini and Krishnamurty, Sailaja and Krishnamoorthy, Kothandam and Babu, Sukumaran Santhosh}
}
