Biotemplated synthesis of three-dimensional porous MnO/C-N nanocomposites from renewable rapeseed pollen: An anode material for lithium-ion batteries

Chen, Lifeng; Ma, Shengxiang; Lu, Shixiang; Feng, Yue; Zhang, Jia; Xin, Sen; Yu, Shu‐Hong

doi:10.1007/s12274-016-1283-7

Cited by 158 publications

(72 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The corresponding discharge-charge voltage profiles of cells with bare LCO or 2% LAF-LCO electrodes were generally consistent with the characteristic profiles of Li/LCO in ethyl carbonate/diethylene carbonate (EC/DEC, volume:volume = 1:1) electrolytes (Fig. 4c) 15 .…”

Section: Resultssupporting

confidence: 72%

“…The O 1s peaks of Al 2 O 3 and LiAlO 2 , which are usually located at 531.7 eV and 531.0 eV, respectively, merged with the yellow peak 16,20 . The binding energy of LiAlO 2 was a little smaller than that of Al 2 O 3 , due to the lower electronegativity of Li compared to Al 15,27 . The F 1s peak (purple peak) at 684.8 eV was expected to be the F 1s peak in LiF (684.9 eV) 27 , but the gray peak at 685.7 eV observed in LAF-LCO and AF-LCO was likely to be the F 1s peak in the LiAlF 4 (685.5 eV) 27 .…”

Section: Resultsmentioning

confidence: 93%

“…Of the various approaches, coating LCO particles with metallic compounds (metal-oxide, -phosphates, and -fluorides) or lithium compounds (LiAlO 2 , Li 2 CO 3 , LiNi 0.5 Mn 1.5 O 4 , etc) 8,14,15 are considered the most promising, because they directly hinder the contact between LCO and the electrolyte solution and, thus, delay structural degradation of the interface. Recently, this method was later promoted into a dual treatment that coating the LCO surface and doping partial element into the bulk LCO simultaneously to address the problem of structural instability and the formation of microcracks.…”

Section: Introductionmentioning

confidence: 99%

“…The resulting Al, F-enriched coating layer with MO (M=Li, Al) nanoparticles effectively resists HF attack from liquid electrolytes and improves the interfacial stability and structural integrity at 4.2 > V 8,17 . Meanwhile, the introduction of excess Li forms a fast Li + diffusion pathway within the coating layer 15 . It also forms a solid solution that contained Li-Al-Co-O-F beneath the surface coating layer by LAF doping 5 , which restrains the harmful irreversible phase transition and enabled reversible cycling at >4.55 V. We calculates the most stable structure of the solid solution when operating at 4.6 V using DFT, and we tentatively propose Li 1/3 Al 1/3 Co 2/3 O 4/3 F 2/3 to be the most probable structure.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Electrochemical surface passivation of LiCoO2 particles at ultrahigh voltage and its applications in lithium-based batteries

et al. 2018

View full text Add to dashboard Cite

Lithium cobalt oxide, as a popular cathode in portable devices, delivers only half of its theoretical capacity in commercial lithium-ion batteries. When increasing the cut-off voltage to release more capacity, solubilization of cobalt in the electrolyte and structural disorders of lithium cobalt oxide particles are severe, leading to rapid capacity fading and limited cycle life. Here, we show a class of ternary lithium, aluminum, fluorine-modified lithium cobalt oxide with a stable and conductive layer using a facile and scalable hydrothermal-assisted, hybrid surface treatment. Such surface treatment hinders direct contact between liquid electrolytes and lithium cobalt oxide particles, which reduces the loss of active cobalt. It also forms a thin doping layer that consists of a lithium-aluminum-cobalt-oxide-fluorine solid solution, which suppresses the phase transition of lithium cobalt oxide when operated at voltages >4.55 V.

show abstract

Section: Resultssupporting

confidence: 72%

Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrochemical surface passivation of LiCoO2 particles at ultrahigh voltage and its applications in lithium-based batteries

et al. 2018

View full text Add to dashboard Cite

show abstract

“…As shown in Figure 6a, in the first cathodic scan, the sharp peak at 0.11 V corresponds to the initial reduction of MnO to metallic Mn (MnO + 2Li + + 2e À !Mn + Li 2 O and the formation of solid electrolyte interface (SEI) film. [46] However, the CV curves are overlapped well after the first two cycles, demonstrating excellent cycling stability for LIBs in the insertion/extraction processes. Interestedly, in the subsequent CV cycles, the cathodic reduction peak shifts from 0.11 V to about 0.45 V for the PCMS@MnOÀ M, indicating the improved reaction kinetics and the stabilization of SEI layer after the first lithiation process.…”

Section: Resultsmentioning

confidence: 91%

Hierarchically Pomegranate‐Like MnO@porous Carbon Microspheres as an Enhanced‐Capacity Anode for Lithium‐Ion Batteries

Gao

Huang

et al. 2019

ChemElectroChem

View full text Add to dashboard Cite

Transition-metal oxides have attracted much attention as promising anode materials, owing to high theoretical specific capacity for lithium-ion batteries (LIBs). However, rapid performance degradation derived from poor electrical conductivity and drastic volume changes during the repeated lithium insertion/ extraction processes has limited their practical applications. In this work, we design and prepare pomegranate-like microspheres of nano-sized MnO particles with gaps among them as the core and porous carbon as the shell (designated as PCMS@MnO) by using a facile three-step process. In such unique PCMS@MnO, the porous carbon shell from phenolic resin is beneficial for the electronic conductivity and wettability, whereas the nano-sized MnO particles with gaps among them confined in the porous carbon shell can effectively prevent aggregation and pulverization of active materials. As an anode material for LIBs, the PCMS@MnO with a carbon content of about 12 wt % exhibits remarkably high reversible capability (935 mAh g À 1 at 100 mA g À 1 ), outstanding rate performance, and superior cycling stability (527 mAh g À 1 of 2000 mA g À 1 after 2000 cycles). Our results suggest a great potential of pomegranate-like transition-metal oxide-based composites as anode materials in high-performance LIBs.

show abstract

Baby Diaper‐Inspired Construction of 3D Porous Composites for Long‐Term Lithium‐Ion Batteries

Wei

Zhang

Wang

et al. 2017

Adv Funct Materials

View full text Add to dashboard Cite

In this paper, by using the superabsorbent polymers (SAPs) from baby diaper, the 3D porous composites decorated with NiO and Ni nanoparticles (NNSCs) have been prepared via a facile dissolving-freeze drying and subsequent annealing reactions. The porous carbon matrix (PCM) derived from the SAPs also provides a continuous highly conductive network to facilitate the fast charge transfer and form a stable solid electrolyte interface film. Furthermore, NNSC can exhibit the high specific capacity and excellent cycle performance as anode materials for lithium-ion batteries. And more importantly, employing the PCM derived from baby diaper offers a green approach for other energy storage materials.

show abstract

Biotemplated synthesis of three-dimensional porous MnO/C-N nanocomposites from renewable rapeseed pollen: An anode material for lithium-ion batteries

Cited by 158 publications

References 56 publications

Electrochemical surface passivation of LiCoO2 particles at ultrahigh voltage and its applications in lithium-based batteries

Electrochemical surface passivation of LiCoO2 particles at ultrahigh voltage and its applications in lithium-based batteries

Hierarchically Pomegranate‐Like MnO@porous Carbon Microspheres as an Enhanced‐Capacity Anode for Lithium‐Ion Batteries

Baby Diaper‐Inspired Construction of 3D Porous Composites for Long‐Term Lithium‐Ion Batteries

Contact Info

Product

Resources

About