Composite lithium battery shell
Recently, SiO2 has attracted wide attention in lithium-ion batteries owing to its high theoretical capacity and low cost. However, the utilization of SiO2 is impeded by the enormous volume expansion and low electric conductivity. Although constructing SiO2/carbon composite can significantly enhance the electrochemical performance, the …
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Facile Synthesis of Core-Shell Structured SiO2@Carbon Composite Nanorods for High-Performance Lithium-Ion Batteries
Recently, SiO2 has attracted wide attention in lithium-ion batteries owing to its high theoretical capacity and low cost. However, the utilization of SiO2 is impeded by the enormous volume expansion and low electric conductivity. Although constructing SiO2/carbon composite can significantly enhance the electrochemical performance, the …
Core-shell carbon composite material as anode materials for lithium-ion batteries …
Core-shell carbon composite material as anode materials for lithium-ion batteries Author links open overlay panel Xiaoxiao Qu a b c, Guangxu Huang a b c, Baolin Xing a b c, Dongyong Si a b c, Bing Xu a b c, Zehua Chen a b c, …
A carob-inspired nanoscale design of yolk–shell Si@void@TiO2-CNF composite as anode material for high-performance lithium-ion batteries …
Silicon (Si) is an attractive anode material for lithium-ion batteries due to its high gravimetric and volumetric capacity. However, the challenges for Si anodes are low conductivity, unstable solid electrolyte interphase (SEI) layer and big volume expansion during the charge/discharge process. Inspired by t
Multicore-shell nanofiber architecture of polyimide/polyvinylidene fluoride blend for thermal and long-term stability of lithium ion battery ...
Li-ion battery, separator, multicoreshell structure, thermal stability, long-term stability. A nanofibrous membrane with multiple cores of polyimide (PI) in the shell of polyvinylidene fluoride ...
Core-shell materials for advanced batteries
In this review, we focus on the core-shell structures employed in advanced batteries including LIBs, LSBs, SIBs, etc. Core-shell structures are innovatively …
Facile and scalable synthesis of nanosized core–shell Li 2 S@C composite for high-performance lithium–sulfur batteries …
Lithium sulfide (Li2S) is one of the most promising cathode materials for the next-generation advanced Li-ion batteries because of its high theoretical capacity (1167 mA h g−1) and large energy density. However, Li2S suffers from poor rate performance and short cycle life due to its insulating nature and pol
General Synthesis of Multiple-Cores@Multiple-Shells Hollow …
A controllable synthesis strategy is developed to fabricate multiple-cores@multiple-shells composite, which is applicable for diverse cores and shells. The cores and shells could …
A simple method to prepare a polydopamine modified core-shell structure composite separator for application in high-safety lithium-ion batteries ...
2.2. Electrode preparation and cell assembly The 2016-type coin cells assembled with PP separator, PVDF-HFP nonwoven membrane and PVDF-HFP-PDA composite membrane were used for the measurement of batteries performance. The cathode included 5 wt% of PVDF, 90 wt% of LiMn 2 O 4 (Qingdao Xinzheng Material Co., …
Core‐Shell‐Structured SiOx—C Composite for Lithium‐Ion Battery …
This SiOx—C core‐shell composite is then used as anode materials for lithium‐ion batteries, with wet‐milled SiOx and raw SiOx anodes used for comparison. It is found that the batteries fabricated with wet‐milled SiOx—C composite show the best cyclic performance and excellent rate capability compared with wet‐milled SiOx and raw SiOx.
ZIF-8/ZIF-67 derived ZnS@Co-N-C hollow core-shell composite and its application in lithium‑sulfur battery …
Therefore, the lithium‑sulfur battery prepared using a ZnS@Co-N-C core-shell composite-coated PE separator showed excellent electrochemical performance. Previous article in issue Next article in issue
Structure and Electrochemical Properties of Si-Mn/C Core–Shell Composites for Lithium-Ion Batteries …
A series of Si-Mn/C core–shell composites as anode materials is synthesized via a hydrothermal method combined with heating treatment. X-ray diffraction, Raman spectroscopy, x-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy analysis are used to investigate the crystal structures …
Dense core–shell structured SnO 2 /C composites as high performance anodes for lithium ion batteries …
Dense core–shell structured SnO2/C composite anodes are found to exhibit superior electrochemical performances compared to the hollow SnO2 or traditional core–shell SnO2/C anodes in lithium ion cells.
Areca-inspired core-shell structured MnO@C composite towards enhanced lithium …
MnO based composites are regarded as advanced conversion-type anode materials for lithium-ion batteries (LIBs) due to the low cost and high theoretical specific capacities (∼756 mA h g −1). Nevertheless, the undesirable structural stability and sluggish electrochemical reaction kinetics of the electrode materials lead to poor lithium …
Construction of a core–double-shell structured Si@graphene@Al2O3 composite for a high-performance lithium-ion battery …
The vast volume expansion of the Si anode during the charging process leads to rapid cycling performance fading and limits its applications in lithium-ion batteries. In this study, a unique core–double-shell structured porous Si@graphene@glycerin-Al2O3 (p-Si@G@g-Al2O3) composite is successfully prepared by u
Dual core–shell structured sulfur cathode composite synthesized by a one-pot route for lithium sulfur batteries
Lithium–sulfur batteries are promising electrochemical devices for future energy conversion and storage. Its theoretical capacity is 1675 mA h g−1, much higher than that of conventional lithium-ion batteries. However, it suffers from rapid capacity decay and low energy efficiency. In this work, we introduce
Three-dimensional cage-like Si@ZIF-67 core-shell composites for high-performance lithium storage …
When this composites had been reduced at 600 C and been used as an anode material in a lithium-ion battery, it delivers a high specific capacity of 1230 mA h g −1 after 200 cycles at 0.5 A g −1. Even at a high current density of 1 A g −1 for 400 cycles, it still maintains a specific capacity of 1180 mA h g −1, indicating excellent electrochemical …
Fe3O4@uio66 core-shell composite for detection of electrolyte leakage from lithium-ion batteries …
Fe 3 O 4 is an environmentally friendly gas sensing material with high response, but the cross-response to various analytes and poor thermal stability limit its practical applications. In this work, we prepared Fe 3 O 4 @uio66 core–shell composite via a facile method. @uio66 core–shell composite via a facile method.
Composite gel polymer electrolytes containing core-shell structured SiO2(Li+) particles for lithium-ion polymer batteries …
In this work, we report novel composite gel polymer electrolyte for lithium-ion polymer batteries. As the lithium ion sources of single ion conductor, the core–shell structured SiO 2 (Li +) particles with uniform spherical shape are synthesized and used as functional fillers in composite gel polymer electrolytes. ...
Carbon coated MnO@Mn 3 N 2 core–shell composites for high …
Carbon coated MnO@Mn3N2 core–shell composites (MnO@Mn3N2/C) were synthesized in a simple approach by calcining MnO2 nanowires with urea at 800 C under an ammonia …
Yolk-shell silicon/carbon composites prepared from aluminum-silicon alloy as anode materials for lithium-ion batteries
Silicon is an attractive anode material for lithium-ion batteries due to its ultrahigh theoretical specific capacity. However, its commercial application is largely limited by the poor cycling stability due to its huge volume change during lithiation and delithiation. A low-cost method is developed to prepare yolk-shell silicon@void@carbon composite …
Core–Shell Structured Nanofibers for Lithium Ion Battery …
Endowing separators in lithium ion batteries with highly sensitive shutdown function and good thermal stability is critical for the large-scale energy storage application of lithium ion batteries. In this work, a thermally induced shutdown separator with high thermal sensitivity and stability has been successfully fabricated via coaxial …
Fluorine-functionalized core-shell Si@C anode for a high-energy lithium-ion full battery …
A fluorine functionalized core-shell structure of Si@C anode is prepared. • The influence of fluorine-functionalizing on the Si-based anode is first illuminated. • The composite exhibits acceptable cycling and rate capability in lithium-ion battery. • A new concept of high ...
Silicon/Graphite/Amorphous Carbon Composites as Anode …
5 · Enhanced lithium storage performance of Si/C composite nanofiber membrane with carbon coating as binder-free and self-supporting anode for lithium-ion battery …
Fe3O4@uio66 core-shell composite for detection of electrolyte leakage from lithium-ion batteries …
Fe3O4@uio66 core-shell composite for detection of electrolyte leakage from lithium-ion batteries, Erpan Zhang, Wenjun Yan, Shiyu Zhou, Min Ling, Houpan Zhou Low-concentration volatile organic compounds (VOCs) detection is widely necessary in …
Facile Synthesis of Core-Shell Structured SiO 2 @Carbon …
Facile Synthesis of Core-Shell Structured SiO 2 @Carbon Composite Nanorods for High-Performance Lithium-Ion Batteries. by. Haibo Pang. 1,2,†, Weicai …
Core Shell Structured Silica/Porous Carbon Composite as an …
The shell of porous carbon on core-silica helps to suppress the volumetric changes that happen during the lithiation and de-lithiation process. Due to these …
Structure and Electrochemical Properties of Si-Mn/C Core–Shell …
The excellent electrochemical performance of the Si-Mn/C (9:1) composite benefits from the presence of the alloy phase in the composite material and the …
Freestanding three-dimensional core–shell nanoarrays for lithium …
Degradation and low conductivity of transition metal oxide anodes cause capacity fading in lithium ion batteries. Here the authors make freestanding 3D copper …
Yolk–shell structured sulfur composite cathode for high performance lithium–sulfur battery
Lithium–sulfur batteries (LSBs) suffer from the unavoidable ''shuttle effects'' of lithium polysulfides (LPSs) and the infinite volume change of the sulfur. Herein, the authors prepared a yolk–shell structured N-doped carbon nanotubes/sulfur/poly(3,4 ...
Walnut-inspired microsized porous silicon/graphene core–shell …
A nanostructured Sn–C composite lithium battery electrode with unique stability and high electrochemical performance. Adv. Mater. 2008, 20, 3169–3175.
Core‐Shell‐Structured SiO x —C Composite for Lithium‐Ion Battery …
Hollow core–shell-structured SiO@void@C composites were synthesized by chemical vapor deposition with acetylene gas, and they could be applied as anode materials for lithium ion (Li-ion) batteries.
Si–carbon core–shell composite anode in lithium secondary batteries
1. IntroductionRecently, many researches have been devoted to replace the carbon electrode with Li-alloy materials such as Si and Sn for the negative electrode of lithium secondary batteries since the alternatives possess a much higher theoretical capacity (Li 15 Si 4: 3579 mAh g −1, Li 22 Sn 5: 993 mAh g −1) than that of graphite [1], …
Nano-sized LiFePO4/C composite with core-shell structure as cathode material for lithium ion battery …
As cathode material for lithium ion battery, the core-shell LiFePO 4 /C composite exhibits high initial capacity of 161 mAh g −1 at 0.1 C, excellent high-rate discharge capacity of 135 mAh g −1 at 5 C and perfect cycling retention of …
Yolk–shell structured sulfur composite cathode for high performance lithium–sulfur battery
Lithium–sulfur batteries (LSBs) suffer from the unavoidable ''shuttle effects'' of lithium polysulfides (LPSs) and the infinite volume change of the sulfur. Herein, the authors prepared a yolk–shell structured N-doped carbon nanotubes/sulfur/poly(3,4
A robust hierarchical 3D Si/CNTs composite with void and carbon shell as Li-ion battery …
To target the low conductance and expansion issues of Si based anodes for Li-ion batteries, a 3D structural composite constructed by CNTs framework distributedly anchored with double-carbon coated silicon nanoparticles …