8 Papers
3 Citations
Yu Jin is an academic researcher from Huazhong University of Science and Technology. The author has contributed to research in topics: Anode & Carbonization. The author has an hindex of 7, co-authored 8 publications.
Chat about Author
Papers
A Dual-Insertion Type Sodium-Ion Full Cell Based on High-Quality Ternary-Metal Prussian Blue Analogs
Jian Peng,Jinsong Wang,Haocong Yi,WenJing Hu,Yonghui Yu,Jinwen Yin,Yi Shen,Yi Liu,Jiahuan Luo,Yue Xu,Peng Wei,Yuyu Li,Yu Jin,Yu Ding,Ling Miao,Jianjun Jiang,Jiantao Han,Yunhui Huang +17 more
Abstract: Prussian blue analogs (PBAs) are especially investigated as superior cathodes for sodium‐ion batteries (SIBs) due to high theoretical capacity (≈170 mA h g−1) with 2‐Na storage and low cost. However, PBAs suffer poor cyclability due to irreversible phase transition in deep charge/discharge states. PBAs also suffer low crystallinity, with considerable [Fe(CN)6] vacancies, and coordinated water in crystal frameworks. Presently, a new chelating agent/surfactant coassisted crystallization method is developed to prepare high‐quality (HQ) ternary‐metal NixCo1−x[Fe(CN)6] PBAs. By introducing inactive metal Ni to suppress capacity fading caused by excessive lattice distortion, these PBAs have tunable limits on depth of charge/discharge. HQ‐NixCo1−x[Fe(CN)6] (x = 0.3) demonstrates the best reversible Na‐storage behavior with a specific capacity of ≈145 mA h g−1 and a remarkably improved cycle performance, with ≈90% capacity retention over 600 cycles at 5 C. Furthermore, a dual‐insertion full cell on the cathode and NaTi2(PO4)3 anode delivers reversible capacity of ≈110 mA h g−1 at a current rate of 1.0 C without capacity fading over 300 cycles, showing promise as a high‐performance SIB for large‐scale energy‐storage systems. The ultrastable cyclability achieved in the lab and explained herein is far beyond that of any previously reported PBA‐based full cells.
215
Low-Cost and High-Performance Hard Carbon Anode Materials for Sodium-Ion Batteries
Kun Wang,Yu Jin,Shixiong Sun,Yangyang Huang,Jian Peng,Jiahuan Luo,Qin Zhang,Yuegang Qiu,Chun Fang,Jiantao Han +9 more
- 27 Apr 2017
TL;DR: The microstructure evolution studied using X-ray diffraction, Raman, Brunauer–Emmett–Teller, and high-resolution transmission electron microscopy, along with electrochemical measurements, reveals the optimal carbonization condition of the mangosteen shell.
186
Metal–Organic Framework Derived Honeycomb Co9S8@C Composites for High‐Performance Supercapacitors
Shixiong Sun,Jiahuan Luo,Yong Qian,Yu Jin,Yi Liu,Yuegang Qiu,Xiang Li,Chun Fang,Jiantao Han,Yunhui Huang +9 more
Abstract: Unique nanostructures always lead to extraordinary electrochemical energy storage performance. Here, the authors report a new strategy for using Metal‐organic frameworks (MOFs) derived cobalt sulfide in a carbon matrix with a 3D honeycombed porous structure, resulting in a high‐performance supercapacitor with unrivalled capacity of ≈1887 F g‐1 at the current density of 1 A g‐1. The honeycomb‐like structure of Co9S8@C composite is loosely adsorbed, with plentiful surface area and high conductivity, leading to improved Faradaic processes across the interface and enhanced redox reactions at active Co9S8 sites. Therefore, the heterostructure‐fabricated hybrid supercapacitor, using activated carbon as the counter electrode, demonstrates a high energy density of 58 Wh kg‐1 at the power density of 1000 W kg‐1. Even under an ultrahigh power density of 17 200 W kg‐1, its energy density maintains ≈38 Wh kg‐1. The hybrid supercapacitor also exhibits suitable cycling stability, with ≈90% capacity retention after 10 000 continuous cycles at the current density of 5 A g‐1. This work presents a practical method for using MOFs as sacrificial templates to synthesize metal‐sulfides for highly efficient electrochemical energy storage.
176
High-Performance Hard Carbon Anode: Tunable Local Structures and Sodium Storage Mechanism
Yu Jin,Shixiong Sun,Mingyang Ou,Yi Liu,Chenyang Fan,Xueping Sun,Jian Peng,Yuyu Li,Yuegang Qiu,Peng Wei,Zhi Deng,Yue Xu,Jiantao Han,Yunhui Huang +13 more
- 26 Apr 2018
TL;DR: In this paper, two series of hard carbon nanospheres with perfect spherical morphology and tailored microstructures were designed and successfully produced using resorcinol formaldehyde (RF) resin as a precursor.
137
Porous NaTi2(PO4)3/C Hierarchical Nanofibers for Ultrafast Electrochemical Energy Storage.
Peng Wei,Yanxiang Liu,Zhihao Wang,Yangyang Huang,Yu Jin,Yi Liu,Shixiong Sun,Yuegang Qiu,Jian Peng,Yue Xu,Xueping Sun,Chun Fang,Jiantao Han,Yunhui Huang +13 more
TL;DR: The results show that the nanoscale-tailored NTP/C-NFs could deliver new insights into the design of high-performing and highly stable anode materials for room-temperature SIBs.
58