Journal ArticleDOI
Sodium ion insertion in hollow carbon nanowires for battery applications.
Yuliang Cao,Lifen Xiao,Lifen Xiao,Maria L. Sushko,Wei Wang,Birgit Schwenzer,Jie Xiao,Zimin Nie,Laxmikant V. Saraf,Zhengguo Yang,Jun Liu +10 more
TLDR
Hollow carbon nanowires prepared through pyrolyzation of a hollow polyaniline nanowire precursor deliver high reversible capacity and excellent cycling stability and the good Na-ion insertion property is attributed to the short diffusion distance in the HCNWs and the large interlayer distance.Abstract:
Hollow carbon nanowires (HCNWs) were prepared through pyrolyzation of a hollow polyaniline nanowire precursor. The HCNWs used as anode material for Na-ion batteries deliver a high reversible capacity of 251 mAh g–1 and 82.2% capacity retention over 400 charge–discharge cycles between 1.2 and 0.01 V (vs Na+/Na) at a constant current of 50 mA g–1 (0.2 C). Excellent cycling stability is also observed at an even higher charge–discharge rate. A high reversible capacity of 149 mAh g–1 also can be obtained at a current rate of 500 mA g–1 (2C). The good Na-ion insertion property is attributed to the short diffusion distance in the HCNWs and the large interlayer distance (0.37 nm) between the graphitic sheets, which agrees with the interlayered distance predicted by theoretical calculations to enable Na-ion insertion in carbon materials.read more
Citations
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Room-temperature stationary sodium-ion batteries for large-scale electric energy storage
TL;DR: In this paper, a variety of electrode materials including cathodes and anodes as well as electrolytes for room-temperature stationary sodium-ion batteries are briefly reviewed and compared the difference in storage behavior between Na and Li in their analogous electrodes and summarize the sodium storage mechanisms in available electrode materials.
Journal ArticleDOI
The role of graphene for electrochemical energy storage
TL;DR: By critically analysing state-of-the-art technologies, this work aims to address the benefits and issues of graphene-based materials, as well as outline the most promising results and applications so far.
Journal ArticleDOI
Smaller sulfur molecules promise better lithium-sulfur batteries.
TL;DR: It is shown that the problem of sulfur loss can be effectively diminished by controlling the sulfur as smaller allotropes in the confined space of a conductive microporous carbon matrix.
Journal ArticleDOI
Expanded graphite as superior anode for sodium-ion batteries
Yang Wen,Kai He,Yujie Zhu,Fudong Han,Yunhua Xu,Isamu Matsuda,Yoshitaka Ishii,John Cumings,Chunsheng Wang +8 more
TL;DR: Expanded graphite is reported as a Na-ion battery anode, prepared through a process of oxidation and partial reduction on graphite, which has an enlarged interlayer lattice distance yet retains an analogous long-range-ordered layered structure to graphite.
Journal ArticleDOI
A phosphorene–graphene hybrid material as a high-capacity anode for sodium-ion batteries
Jie Sun,Hyun-Wook Lee,Mauro Pasta,Hongtao Yuan,Guangyuan Zheng,Yongming Sun,Yuzhang Li,Yi Cui,Yi Cui +8 more
TL;DR: It is shown that a hybrid material made out of a few phosphorene layers sandwiched between graphene layers shows a specific capacity of 2,440 mA h g(-1) at a current density and an 83% capacity retention after 100 cycles while operating between 0 and 1.5 V.
References
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TL;DR: A brief historical review of the development of lithium-based rechargeable batteries is presented, ongoing research strategies are highlighted, and the challenges that remain regarding the synthesis, characterization, electrochemical performance and safety of these systems are discussed.
Journal ArticleDOI
Challenges for Rechargeable Li Batteries
John B. Goodenough,Youngsik Kim +1 more
TL;DR: In this paper, the authors reviewed the challenges for further development of Li rechargeable batteries for electric vehicles and proposed a nonflammable electrolyte with either a larger window between its lowest unoccupied molecular orbital and highest occupied molecular orbital (HOMO) or a constituent that can develop rapidly a solid/ electrolyte-interface (SEI) layer to prevent plating of Li on a carbon anode during a fast charge of the battery.
Journal ArticleDOI
P2-type Nax[Fe1/2Mn1/2]O2 made from earth-abundant elements for rechargeable Na batteries
Naoaki Yabuuchi,Masataka Kajiyama,Junichi Iwatate,Heisuke Nishikawa,Shuji Hitomi,Ryoichi Okuyama,Ryo Usui,Yasuhiro Yamada,Shinichi Komaba +8 more
TL;DR: A new electrode material, P2-Na(2/3)[Fe(1/2)Mn( 1/2)]O(2), that delivers 190 mAh g(-1) of reversible capacity in the sodium cells with the electrochemically active Fe(3+)/Fe(4+) redox will contribute to the development of rechargeable batteries from the earth-abundant elements operable at room temperature.
Journal ArticleDOI
Electrochemical Na Insertion and Solid Electrolyte Interphase for Hard-Carbon Electrodes and Application to Na-Ion Batteries
Shinichi Komaba,Wataru Murata,Toru Ishikawa,Naoaki Yabuuchi,Tomoaki Ozeki,Tetsuri Nakayama,Atsushi Ogata,Kazuma Gotoh,Kazuya Fujiwara +8 more
TL;DR: In this paper, a 3-volt secondary Na-ion battery possessing environmental and cost friendliness, Na+-shuttlecock hard-carbon/NaNi0.5Mn 0.5O2 cell, demonstrates steady cycling performance as next generation secondary batteries and an alternative to Li-ion batteries.
Journal ArticleDOI
A review on electrolyte additives for lithium-ion batteries
TL;DR: In this article, a review of electrolyte additives used in Li-ion batteries is presented, which can be classified into five categories: solid electrolyte interface (SEI) forming improver, cathode protection agent, LiPF 6 salt stabilizer, safety protection agent and Li deposition improver.