Graphene functionalized attapulgite/sulfur composite as cathode of lithium–sulfur batteries for energy storage

Attapulgite nanorods assisted surface engineering for separator to achieve high-performance lithium–sulfur batteries

“…S2), two steps of weight loss between 25 °C and 230 °C could be ascribed to the removal of adsorbed water and crystal water, respectively. The third weight loss above 400 °C can be ascribed to release of constitution water and then collapse of channels, which would lead to decrease in specific surface area of attapulgite [41] . This result is further demonstrated by adsorbing LiPSs test in Fig.…”

“…Attapulgite, natural multi-metal oxide nanorods, can be used as adsorbents for water purification due to its high surface area and porosity feature. For the energy storage, attapulgite has been employed as the anode of lithium-ion batteries [39 , 40] and the sulfur host of lithium sulfur battery [41] due to its excellent chemical stability and strong adsorption capability. In light of this contribution, attapulgite nanorods could be a multifunctional ionic sieve interlayer to suppress the "shuttle effect" and further guide LiPSs management in working Li-S batteries.…”

Ball-Milled Silicon with Amorphous Al2O3/C Hybrid Coating Embedded in Graphene/Graphite Nanosheets with a Boosted Lithium Storage Capability

“…It is known that commercial graphite has a low theoretical specific capacity of 372 mA h g −1 as anodes for LiBs, which does not satisfy the high energy demands. 5,6 Therefore, it is necessary to seek applications of other alternative anode materials with a high specific capacity, such as metal oxides, hard carbons, and metal alloys.…”

“…In the last decades, a rapid growing demand for clean and renewable energy has stimulated the development of new energy storage systems and the relevant materials. − Among these systems, lithium-ion batteries (LiBs) have been widely applied in portable electronic devices, electric vehicles, and other large-scale applications because of their inherent advantages such as a long cycle life and a high energy density. It is known that commercial graphite has a low theoretical specific capacity of 372 mA h g –1 as anodes for LiBs, which does not satisfy the high energy demands. , Therefore, it is necessary to seek applications of other alternative anode materials with a high specific capacity, such as metal oxides, hard carbons, and metal alloys.…”

Fabrication of NiO–carbon nanotube/sulfur composites for lithium-sulfur battery application

“…Lithium sulfur batteries (LSBs), with high theoretical energy density (2500 W h kg À1 ) and capacity (1672 mA h g À1 ), low cost, and nontoxicity, are attracting increasing attention as promising next generation rechargeable batteries. 1,2 The cathode material is the core part of LSBs. Therefore, in order to overcome the difficulties existing in LSBs and realize the commercialization of LSBs as soon as possible, the existing issues in the cathode materials must be solved rst, mainly including the following three aspects.…”