scholarly journals Lithium-Ion Batteries: 3D-Printed Cathodes of LiMn1−xFexPO4Nanocrystals Achieve Both Ultrahigh Rate and High Capacity for Advanced Lithium-Ion Battery (Adv. Energy Mater. 18/2016)

2016 ◽  
Vol 6 (18) ◽  
Author(s):  
Jiangtao Hu ◽  
Yi Jiang ◽  
Suihan Cui ◽  
Yandong Duan ◽  
Tongchao Liu ◽  
...  
NANO ◽  
2020 ◽  
Vol 15 (06) ◽  
pp. 2050076
Author(s):  
Fang Sun ◽  
Zhiyuan Tan ◽  
Zhengguang Hu ◽  
Jun Chen ◽  
Jie Luo ◽  
...  

Silicon is widely studied as a high-capacity lithium-ion battery anode. However, the pulverization of silicon caused by a large volume expansion during lithiation impedes it from being used as a next generation anode for lithium-ion batteries. To overcome this drawback, we synthesized ultrathin silicon nanowires. These nanowires are 1D silicon nanostructures fabricated by a new bi-metal-assisted chemical etching process. We compared the lithium-ion battery properties of silicon nanowires with different average diameters of 100[Formula: see text]nm, 30[Formula: see text]nm and 10[Formula: see text]nm and found that the 30[Formula: see text]nm ultrathin silicon nanowire anode has the most stable properties for use in lithium-ion batteries. The above anode demonstrates a discharge capacity of 1066.0[Formula: see text]mAh/g at a current density of 300[Formula: see text]mA/g when based on the mass of active materials; furthermore, the ultrathin silicon nanowire with average diameter of 30[Formula: see text]nm anode retains 87.5% of its capacity after the 50th cycle, which is the best among the three silicon nanowire anodes. The 30[Formula: see text]nm ultrathin silicon nanowire anode has a more proper average diameter and more efficient content of SiOx. The above prevents the 30[Formula: see text]nm ultrathin silicon nanowires from pulverization and broken during cycling, and helps the 30[Formula: see text]nm ultrathin silicon nanowires anode to have a stable SEI layer, which contributes to its high stability.


2019 ◽  
Vol 55 (3) ◽  
pp. 361-364 ◽  
Author(s):  
Donghee Gueon ◽  
Jun Hyuk Moon

We report simple yet rationally designed, polydopamine-wrapped, silicon nanoparticle-impregnated macroporous CNT particles for high-capacity lithium-ion batteries.


Author(s):  
Huan L. Pham ◽  
J. Eric Dietz ◽  
Douglas E. Adams ◽  
Nathan D. Sharp

With their superior advantages of high capacity and low percentage of self-discharge, lithium-ion batteries have become the most popular choice for power storage in electric vehicles. Due to the increased potential for long life of lithium-ion batteries in vehicle applications, manufacturers are pursuing methodologies to increase the reliability of their batteries. This research project is focused on utilizing non-destructive vibration diagnostic testing methods to monitor changes in the physical properties of the lithium-ion battery electrodes, which dictate the states of charge (SOC) and states of health (SOH) of the battery cell. When the battery cell is cycled, matter is transported from one electrode to another which causes mechanical properties such as thickness, mass, stiffness of the electrodes inside a battery cell to change at different states of charge; therefore, the detection of these changes will serve to determine the state of charge of the battery cell. As mass and stiffness of the electrodes change during charge and discharge, they will respond to the excitation input differently. An automated vibration diagnostic test is developed to characterize the state of charge of a lithium-ion battery cell by measuring the amplitude and phase of the kinematic response as a function of excitation frequency at different states of charge of the battery cell and at different times in the life of the cell. Also, the mechanical properties of the electrodes at different states of charge are obtained by direct measurements to develop a first-principles frequency response model for the battery cell. The correlation between the vibration test results and the model will be used to determine the state of charge of the cell.


RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13964-13971 ◽  
Author(s):  
Md. Selim Arif Sher Shah ◽  
Shoaib Muhammad ◽  
Jong Hyeok Park ◽  
Won-Sub Yoon ◽  
Pil J. Yoo

A conducting polymer matrix of PEDOT:PSS is incorporated into SnO2/reduced graphene oxide composite for increasing the stability of lithium-ion battery anodes.


2015 ◽  
Vol 51 (60) ◽  
pp. 12118-12121 ◽  
Author(s):  
Mengyao Gao ◽  
Naiqiang Liu ◽  
Yilei Chen ◽  
Yuepeng Guan ◽  
Weikun Wang ◽  
...  

Graphite with a large inter-planar distance (0.357 nm), obtained from pig bone, delivered an continuously improving specific capacity when used as a lithium-ion battery anode.


Author(s):  
Bingjie Zhang ◽  
Xiaodong Yang ◽  
Ben He ◽  
Qiqi Wang ◽  
Zishun Liu ◽  
...  

Organic materials have potential advantages in lithium-ion batteries (LIBs) due to their environmental friendliness, flexible designability, and high theoretical capacity. However, the commonly low electrical conductivity and high solubility of...


2015 ◽  
Vol 3 (7) ◽  
pp. 3522-3528 ◽  
Author(s):  
Xinghua Chang ◽  
Wei Li ◽  
Junfeng Yang ◽  
Li Xu ◽  
Jie Zheng ◽  
...  

One step plasma deposited Si/C nanocomposites as high capacity, high stability lithium ion battery anodes.


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