Hard carbon is regarded as a promising anode material for sodium-ion batteries (SIBs). However, it usually suffers from the issues of low initial Coulombic efficiency (ICE) and poor rate performance, severely hindering its practical application. Herein, flexible, self-supporting, scalable hard paper (HCP) derived renewable tissue rationally designed prepared additive-free room/low-temperature SIBs with high ICE. In ether electrolyte, such HCP achieves an ICE up to 91.2% superior high-rate...

Abstract Presently, commercialization of sodium‐ion batteries (SIBs) is still hindered by the relatively poor energy‐storage performance. In addition, low‐temperature (low‐T) Na storage another principal concern for wide application SIBs. Unfortunately, Na‐transfer kinetics extremely sluggish at low‐T, as a result, there are few reports on low‐T Here, an advanced full battery (SIFB) assembled anode 3D Se/graphene composite and high‐voltage cathode (Na 3 V 2 (PO 4 ) O F) developed, exhibiting...

Conventional ion batteries utilizing metallic ions as the single charge carriers are limited by insufficient abundance of metal resources. Although supercapacitors apply both cations and anions to store energy through absorption and/or Faradic reactions occurring at interfaces electrode/electrolyte, inherent low density hinders its application. The graphite-cathode-based dual-ion battery possesses a higher due high working potential nearly 5 V. However, such configuration suffers from severe...

Abstract Transition metal selenides have been attracting significant attention owing to their high conductivity and theoretical capacity. In this article, the N‐doped carbon (NDC)‐coated Ni 1.8 Co 1.2 Se 4 nanoparticles encapsulated in NDC nanoboxes are prepared from bi‐metal organic framework (Ni 3 [Co(CN) 6 ] 2 ·6H O, Ni‐Co BMOF) after selenization reaction coating. When used as an anode material for sodium‐ion batteries, delivers excellent rate performance (211 153 mA h g −1 at ultrahigh...

A novel core-shell Fe3O4@FeS composed of Fe3O4 core and FeS shell with the morphology regular octahedra has been prepared via a facile scalable strategy employing commercial as precursor. When used anode material for sodium-ion batteries (SIBs), combines merits high Na-storage capacity superior cycling stability, respectively. The optimized electrode shows ultralong cycle life outstanding rate capability. For instance, it remains retention 90.8% reversible 169 mAh g-1 after 750 cycles at 0.2...

The exhausted graphite from spent Li-ion batteries is recycled and reused as a favorable anode for Na/K-ion batteries, the insights into structural de-/intercalation model are realized.

Abstract With the rapidly growing demand for low‐cost and safe energy storage, advanced battery concepts have triggered strong interests beyond state‐of‐the‐art Li‐ion batteries (LIBs). Herein, a novel hybrid Li/Na‐ion full (HLNIB) composed of high‐energy lithium‐free Na 3 V 2 (PO 4 ) O F (NVPOF) cathode commercial graphite anode mesophase carbon micro beads is first time designed. The assembled HLNIBs exhibit two high working voltage at about 4.05 3.69 with specific capacity 112.7 mA h g −1...

The electronically conductive networks in the MnO-based anode of lithium ion batteries have been optimized by employing different carbonaceous materials as building blocks.

A novel pie-like FeS@C nanohybrid has been prepared, which exhibits pseudocapacitance-prompted ultrafast Na storage and superior Na-ion full-cell performance.

An advanced anode for sodium-ion batteries is prepared by embedding cube-like Ni_1.5CoSe₅ nanoaggregates into 3D dual N-doped carbon network.

A prolific biomass of chitosan is employed as the raw material to successfully prepare one porous N-doped carbon material, which exhibits excellent energy-storage performance when used electrode for SCs and LIBs.

In this work, the low-cost hierarchically porous nitrogen-doped carbon nanosheets (PNCNs) were prepared via one-step carbonization and KOH activation process of grapefruit peels. The PNCNs exhibit higher specific surface area due to inducement KOH-assisted compared directly carbonized peels (DCGPs). excellent electrochemical performances with high capacitance up 311 F g−1, superior cycling stability over 10000 cycles only 5.95 % degradation, energy density 17.7 W h kg−1 power 1100 in 1 mol...

In order to develop promising anode materials for lithium-ion batteries (LIBs), a unique nanocomposite abbreviated as G⊥FP@C-NA, in which carbon-coated FeP nanorod array (FP@C-NA) is vertically grown on conductive reduced graphene oxide (G) network, has been successfully prepared via scalable strategy. Benefiting from the distinctive structure, G⊥FP@C-NA exhibits much improved conductivity, structural stability and pseudocapacitance-boosted ultrafast electrochemical kinetics Li storage. As...

An advanced anode composite for use in sodium-ion batteries was developed <italic>via</italic> constructing multiple phase heterointerfaces, which were significant and effective improving the Na storage properties.

A flexible carbon cloth cathode and anode with high energy storage activity are constructed via targeted strategies using cotton cloth. The assembled all-cloth sodium ion capacitor provides stable power output even under bending/cutting conditions.

In recent years, graphene-incorporated micro-/nanocomposites represent one of the hottest developing directions for composite materials. However, a large number active nanoparticles (NPs) are still in unprotected state most constructed graphene-containing designs, which will seriously impair effects graphene additives. Here, fully protected Fe3O4-based micro-/nanocomposite (G/Fe3O4@C) is rationally developed by carbon-boxing common graphene/Fe3O4 microparticulates (G/Fe3O4). The processes...

Owing to the high de/intercalation potential of anions on graphite cathode, dual-ion battery (DIB) has attracted much attention for advanced energy storage. Among various DIBs, Li//graphite (Li//G) configuration delivers highest voltage achieve theoretically density due lowest Li-plating/-stripping potential. Unfortunately, dendrite nature Li anode brings a series serious problems, fatally restricting practical application Li//G DIB. Herein, we first time propose fabricating artificial and...

Due to the Earth's scarcity of lithium, replacing lithium with earth-abundant and low-cost sodium for sodium-ion batteries (SIBs) has recently become a promising substitute lithium-ion batteries. However, shortage appropriate anode materials limits development SIBs. Here, dual-carbon conductive network enhanced GeP5 (GeP5/acetylene black/partially reduced graphene oxide sheets (GeP5/AB/p-rGO)) composite is successfully prepared by facile ball milling method. The not only provides more...

Following modification with a carbon nanofibers film, an advanced Li//graphite dual-ion battery shows superior cycle life dendrite-free Li anode.