Guangmei Hou
Shandong University
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Publication
Featured researches published by Guangmei Hou.
Journal of Materials Chemistry | 2018
Xiaoxin Ma; Long Chen; Xiaohua Ren; Guangmei Hou; Lina Chen; Le Zhang; Beibei Liu; Qing Ai; Lin Zhang; Pengchao Si; Jun Lou; Jinkui Feng; Lijie Ci
Red phosphorus (P) has been regarded as an attractive anode material in a sodium-ion battery (SIB) due to its natural abundance and higher theoretical specific capacity. We developed a novel flexible P/carbon nanofibers@reduced graphene oxide (P/CFs@RGO) electrode for sodium-ion batteries through simple vapor-redistribution and electrospinning. In this multi-layer structured P/CFs@RGO electrode, the large volume changes of the red P layer during cycling can be easily buffered and the loss of P from carbon fibers is prevented. In addition, the electrodes have better electron transport. As the result, the as-prepared P/CFs@RGO electrode delivers a high capacity retention of 725.9 mA h g−1 after 55 cycles at 50 mA g−1 and a significant capacity of 406.6 mA h g−1 even at large current densities of 1000 mA g−1 after 180 cycles.
ACS Applied Materials & Interfaces | 2018
Guangmei Hou; Xiaoxin Ma; Qidi Sun; Qing Ai; Xiaoyan Xu; Lina Chen; Deping Li; Jinghua Chen; Hai Zhong; Yang Li; Zhibin Xu; Pengchao Si; Jinkui Feng; Lin Zhang; Fei Ding; Lijie Ci
The electrode-electrolyte interface stability is a critical factor influencing cycle performance of All-solid-state lithium batteries (ASSLBs). Here, we propose a LiF- and Li3N-enriched artificial solid state electrolyte interphase (SEI) protective layer on metallic lithium (Li). The SEI layer can stabilize metallic Li anode and improve the interface compatibility at the Li anode side in ASSLBs. We also developed a Li1.5Al0.5Ge1.5(PO4)3-poly(ethylene oxide) (LAGP-PEO) concrete structured composite solid electrolyte. The symmetric Li/LAGP-PEO/Li cells with SEI-protected Li anodes have been stably cycled with small polarization at a current density of 0.05 mA cm-2 at 50 °C for nearly 400 h. ASSLB-based on SEI-protected Li anode, LAGP-PEO electrolyte, and LiFePO4 (LFP) cathode exhibits excellent cyclic stability with an initial discharge capacity of 147.2 mA h g-1 and a retention of 96% after 200 cycles.
Scientific Reports | 2017
Xiaoxin Ma; Guangmei Hou; Qing Ai; Lin Zhang; Pengchao Si; Jinkui Feng; Lijie Ci
In an animal body, coronary arteries cover around the whole heart and supply the necessary oxygen and nutrition so that the heart muscle can survive as well as can pump blood in and out very efficiently. Inspired by this, we have designed a novel heart-coronary arteries structured electrode by electrospinning carbon nanofibers to cover active anode graphene/silicon particles. Electrospun high conductive nanofibers serve as veins and arteries to enhance the electron transportation and improve the electrochemical properties of the active “heart” particles. This flexible binder free carbon nanofibers/graphene/silicon electrode consists of millions of heart-coronary arteries cells. Besides, in the graphene/silicon “hearts”, graphene network improves the electrical conductivity of silicon nanopaticles, buffers the volume change of silicon, and prevents them from directly contacting with electrolyte. As expected, this novel composite electrode demonstrates excellent lithium storage performance with a 86.5% capacity retention after 200 cycles, along with a high rate performance with a 543 mAh g−1 capacity at the rate of 1000u2009mAu2009g−1.
Journal of Alloys and Compounds | 2018
Le Zhang; Guangmei Hou; Wei Zhai; Qing Ai; Jinkui Feng; Lin Zhang; Pengchao Si; Lijie Ci
Journal of Power Sources | 2018
Guangmei Hou; Xiaohua Ren; Xiaoxin Ma; Le Zhang; Wei Zhai; Qing Ai; Xiaoyan Xu; Lin Zhang; Pengchao Si; Jinkui Feng; Fei Ding; Lijie Ci
Electrochimica Acta | 2018
Xiaoyan Xu; Qing Ai; Lu Pan; Xiaoxin Ma; Wei Zhai; Yongling An; Guangmei Hou; Jinghua Chen; Lin Zhang; Pengchao Si; Jun Lou; Jinkui Feng; Lijie Ci
Advanced Materials Interfaces | 2018
Deping Li; Min Zhu; Lina Chen; Long Chen; Wei Zhai; Qing Ai; Guangmei Hou; Qing Sun; Yang Liu; Zhen Liang; Shirui Guo; Jun Lou; Pengchao Si; Jinkui Feng; Lin Zhang; Lijie Ci
Journal of Power Sources | 2018
Xiaoyan Xu; Guangmei Hou; Xiangkun Nie; Qing Ai; Yang Liu; Jinkui Feng; Lin Zhang; Pengchao Si; Shirui Guo; Lijie Ci
Journal of Power Sources | 2018
Lina Chen; Wei Zhai; Long Chen; Deping Li; Xiaoxin Ma; Qing Ai; Xiaoyan Xu; Guangmei Hou; Lin Zhang; Jinkui Feng; Pengchao Si; Lijie Ci
Diamond and Related Materials | 2018
Qing Ai; Peng Zhou; Wei Zhai; Xiaoxin Ma; Guangmei Hou; Xiaoyan Xu; Lina Chen; Deping Li; Long Chen; Lin Zhang; Pengchao Si; Jinkui Feng; Qijin Chi; Lijie Ci