Black phosphorus composites with engineered interfaces for high-rate high-capacity lithium storage

Science ◽  
2020 ◽  
Vol 370 (6513) ◽  
pp. 192-197 ◽  
Author(s):  
Hongchang Jin ◽  
Sen Xin ◽  
Chenghao Chuang ◽  
Wangda Li ◽  
Haiyun Wang ◽  
...  

High-rate lithium (Li) ion batteries that can be charged in minutes and store enough energy for a 350-mile driving range are highly desired for all-electric vehicles. A high charging rate usually leads to sacrifices in capacity and cycling stability. We report use of black phosphorus (BP) as the active anode for high-rate, high-capacity Li storage. The formation of covalent bonds with graphitic carbon restrains edge reconstruction in layered BP particles to ensure open edges for fast Li+ entry; the coating of the covalently bonded BP-graphite particles with electrolyte-swollen polyaniline yields a stable solid–electrolyte interphase and inhibits the continuous growth of poorly conducting Li fluorides and carbonates to ensure efficient Li+ transport. The resultant composite anode demonstrates an excellent combination of capacity, rate, and cycling endurance.

Author(s):  
Xinhui Zhao ◽  
Qingqing Ren

Abstract Low-cost Fe-based electrode materials for Li-ion energy storage devices attract lots of attention. In this work, porous Fe2O3 nanoparticles are synthesized by a simple route. Firstly, their lithium storage performance is investigated by assembling half-cell configurations with Li foil as the counter electrode. During initial dozens of cycles, capacities of Fe2O3 nanoparticles fall off rapidly, which is related to continuous growth of solid electrolyte interphase (SEI). Amazingly, the capacities show an upturn in extended cycles. The pseudocapacitance of activated capacities is revealed by executing cyclic voltammetry (CV) tests at various scan rates on 500-cycled Fe2O3 electrodes. Based on electrochemical results, we speculate this special cycling performance of Fe2O3 nanoparticles may be associated with reversible electrochemical processes of SEI under the catalysis of nano-size Fe. Further, 500-cycled Fe2O3 anodes are reassembled with activated carbon cathodes for Li-ion capacitors (LICs). The LICs show energy densities of 110 Wh kg−1 at power densities of 136 W kg−1, and 72.8% capacity retention after 3000 cycles at 2 A g−1. We report an interesting electrochemical behavior of porous Fe2O3 nanoparticles, and a high-performance LIC based on activated Fe2O3 as an anode. This work may offer a new understanding for lithium storage capacities of metal oxide anodes.


2021 ◽  
pp. 138386
Author(s):  
Zhen Xu ◽  
Daobo Li ◽  
Jie Xu ◽  
Junlin Lu ◽  
Dongmei Zhang ◽  
...  

2013 ◽  
Vol 25 (27) ◽  
pp. 3722-3726 ◽  
Author(s):  
Feng Wu ◽  
Ning Li ◽  
Yuefeng Su ◽  
Haofang Shou ◽  
Liying Bao ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24320-24330 ◽  
Author(s):  
Junkai He ◽  
Ying Liu ◽  
Yongtao Meng ◽  
Xiangcheng Sun ◽  
Sourav Biswas ◽  
...  

A new one-step microwave method was designed for synthesis of rGO/Co3O4, and the Li-ion battery showed high capacity and long life.


2019 ◽  
Vol 3 (1) ◽  
pp. 245-250 ◽  
Author(s):  
Kingshuk Roy ◽  
Malik Wahid ◽  
Dhanya Puthusseri ◽  
Apurva Patrike ◽  
Subas Muduli ◽  
...  

The exceptionally high theoretical capacity of silicon as a Li-ion battery anode material is hard to realize and stabilize in practice due to huge volume changes during lithiation/de-lithiation. With the use of black phosphorus additive we could achieve tremendous stability due to strain management.


2015 ◽  
Vol 3 (5) ◽  
pp. 1979-1985 ◽  
Author(s):  
Yan-Zhen Zheng ◽  
Haiyang Ding ◽  
Evan Uchaker ◽  
Xia Tao ◽  
Jian-Feng Chen ◽  
...  

Hierarchical Ni–V2O5 hollow microspheres, prepared via a template-free Ni-mediated polyol process, have excellent Li storage properties as a Li-ion battery cathode (high capacity (294 mA h g−1), superior cycling stability/rate performance) due to their unique structure and low V valence state.


Nanoscale ◽  
2014 ◽  
Vol 6 (6) ◽  
pp. 3302 ◽  
Author(s):  
Donglin Li ◽  
Miao Tian ◽  
Rong Xie ◽  
Qian Li ◽  
Xiaoyong Fan ◽  
...  

2019 ◽  
Vol 7 (18) ◽  
pp. 11478-11486 ◽  
Author(s):  
Xiaowei He ◽  
Lidong Tian ◽  
Mingtao Qiao ◽  
Jianzheng Zhang ◽  
Wangchang Geng ◽  
...  

Hierarchically structured and ammonium-rich Prussian blue analogue materials are prepared by a one-step hydrothermal method, and show excellent lithium storage performance.


2019 ◽  
Vol 7 (37) ◽  
pp. 21270-21279 ◽  
Author(s):  
Yanmin Qin ◽  
Zhongqing Jiang ◽  
Liping Guo ◽  
Jianlin Huang ◽  
Zhong-Jie Jiang ◽  
...  

N, S co-doped carbon coated MnOS (MnOS@NSC) has been demonstrated to be a potential anode material for LIBs with high capacity, good cycling stability and excellent rate performance.


2021 ◽  
Author(s):  
Daobo Li ◽  
Zhen Xu ◽  
Dongmei Zhang ◽  
Cunyuan Pei ◽  
Tao Li ◽  
...  

The high-rate performance of Ga2O3-based electrode has been seriously restricted by its modest reaction kinetics caused by the particular challenge in morphology regulation. Here Ga2O3-Li3VO4/N doped C nanofibers (G-LVO/NC NFs)...


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