Reversible planar gliding and microcracking in a single-crystalline Ni-rich cathode

Science ◽  
2020 ◽  
Vol 370 (6522) ◽  
pp. 1313-1317
Author(s):  
Yujing Bi ◽  
Jinhui Tao ◽  
Yuqin Wu ◽  
Linze Li ◽  
Yaobin Xu ◽  
...  
Keyword(s):  
High Performance ◽  
High Energy ◽  
Side Reactions ◽  
Particle Fracture ◽  
Gas Generation ◽  
Moisture Sensitivity ◽  
Single Crystalline ◽  
Electrochemical Behaviors ◽  
Li Ion ◽  
Reversible Formation

High-energy nickel (Ni)–rich cathode will play a key role in advanced lithium (Li)–ion batteries, but it suffers from moisture sensitivity, side reactions, and gas generation. Single-crystalline Ni-rich cathode has a great potential to address the challenges present in its polycrystalline counterpart by reducing phase boundaries and materials surfaces. However, synthesis of high-performance single-crystalline Ni-rich cathode is very challenging, notwithstanding a fundamental linkage between overpotential, microstructure, and electrochemical behaviors in single-crystalline Ni-rich cathodes. We observe reversible planar gliding and microcracking along the (003) plane in a single-crystalline Ni-rich cathode. The reversible formation of microstructure defects is correlated with the localized stresses induced by a concentration gradient of Li atoms in the lattice, providing clues to mitigate particle fracture from synthesis modifications.

scholarly journals Two-dimensional SnO2 anchored biomass-derived carbon nanosheet anode for high-performance Li-ion capacitors

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10018-10026
Author(s):  
Chang Liu ◽  
Zeyin He ◽  
Jianmin Niu ◽  
Qiang Cheng ◽  
Zongchen Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
Good Combination ◽  
Two Dimensional ◽  
Power Characteristics ◽  
Coffee Grounds ◽  
Lithium Ion Capacitor ◽  
Li Ion

In this work, we have fabricated lithium-ion capacitor using SnO2/PCN as anode and waste coffee grounds derived PCN as cathode, which delivers good combination of high energy and power characteristics.

scholarly journals Synthesis of Si/Fe2O3-Anchored rGO Frameworks as High-Performance Anodes for Li-Ion Batteries

2021 ◽  
Vol 22 (20) ◽  
pp. 11041
Author(s):  
Yajing Yan ◽  
Yanxu Chen ◽  
Yongyan Li ◽  
Xiaoyu Wu ◽  
Chao Jin ◽  
...  
Keyword(s):  
High Performance ◽  
Melt Spinning ◽  
Three Dimensional ◽  
High Capacity ◽  
Reversible Capacity ◽  
High Energy ◽  
High Specific Surface Area ◽  
High Energy Density ◽  
Active Components ◽  
Li Ion

By virtue of the high theoretical capacity of Si, Si-related materials have been developed as promising anode candidates for high-energy-density batteries. During repeated charge/discharge cycling, however, severe volumetric variation induces the pulverization and peeling of active components, causing rapid capacity decay and even development stagnation in high-capacity batteries. In this study, the Si/Fe2O3-anchored rGO framework was prepared by introducing ball milling into a melt spinning and dealloying process. As the Li-ion battery (LIB) anode, it presents a high reversible capacity of 1744.5 mAh g−1 at 200 mA g−1 after 200 cycles and 889.4 mAh g−1 at 5 A g−1 after 500 cycles. The outstanding electrochemical performance is due to the three-dimensional cross-linked porous framework with a high specific surface area, which is helpful to the transmission of ions and electrons. Moreover, with the cooperation of rGO, the volume expansion of Si is effectively alleviated, thus improving cycling stability. The work provides insights for the design and preparation of Si-based materials for high-performance LIB applications.

Tuning surface conductivity and stability for high-performance Li- and Mn-rich cathode materials

2019 ◽  
Vol 43 (47) ◽  
pp. 18943-18950 ◽  
Author(s):  
Zhao Li ◽  
Qiang Li ◽  
Anbang Zhang ◽  
Wen Wen ◽  
Lin Wang ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Layered Materials ◽  
High Energy ◽  
Surface Conductivity ◽  
Li Ion Batteries ◽  
Li Ion

Li- and Mn-rich (LMR) layered materials with large specific capacities are one of the most promising cathodes for high-energy Li-ion batteries.

High-performance graphene/sulphur electrodes for flexible Li-ion batteries using the low-temperature spraying method

Nanoscale ◽  
2015 ◽  
Vol 7 (17) ◽  
pp. 8093-8100 ◽  
Author(s):  
Pushpendra Kumar ◽  
Feng-Yu Wu ◽  
Lung-Hao Hu ◽  
Syed Ali Abbas ◽  
Jun Ming ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Performance ◽  
High Energy ◽  
Li Ion Batteries ◽  
Excellent Method ◽  
Li Ion ◽  
Spraying Method

Low temperature spraying of graphene–sulphur ink has been shown to be an excellent method to fabricate high energy electrodes for flexible batteries.

SnSb/TiO2/C nanocomposite fabricated by high energy ball milling for high-performance lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 32462-32466 ◽  
Author(s):  
Haihua Zhao ◽  
Wen Qi ◽  
Xuan Li ◽  
Hong Zeng ◽  
Ying Wu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Ball Milling ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Li Ion Batteries ◽  
Energy Ball ◽  
Li Ion

Alloy anodes for Li-ion batteries (LIBs) have attracted great interest due to their high capacity.

scholarly journals Three-Dimensionally Porous Li-Ion and Li-S Battery Cathodes: A Mini Review for Preparation Methods and Energy-Storage Performance

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 441 ◽  
Author(s):  
Jinyun Liu ◽  
Jiawei Long ◽  
Sen Du ◽  
Bai Sun ◽  
Shuguang Zhu ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Preparation Methods ◽  
Electron Transfer Pathway ◽  
Performance Factors ◽  
Ion Conductivities ◽  
Li Ion

Among many types of batteries, Li-ion and Li-S batteries have been of great interest because of their high energy density, low self-discharge, and non-memory effect, among other aspects. Emerging applications require batteries with higher performance factors, such as capacity and cycling life, which have motivated many research efforts on constructing high-performance anode and cathode materials. Herein, recent research about cathode materials are particularly focused on. Low electron and ion conductivities and poor electrode stability remain great challenges. Three-dimensional (3D) porous nanostructures commonly exhibit unique properties, such as good Li+ ion diffusion, short electron transfer pathway, robust mechanical strength, and sufficient space for volume change accommodation during charge/discharge, which make them promising for high-performance cathodes in batteries. A comprehensive summary about some cutting-edge investigations of Li-ion and Li-S battery cathodes is presented. As demonstrative examples, LiCoO2, LiMn2O4, LiFePO4, V2O5, and LiNi1−x−yCoxMnyO2 in pristine and modified forms with a 3D porous structure for Li-ion batteries are introduced, with a particular focus on their preparation methods. Additionally, S loaded on 3D scaffolds for Li-S batteries is discussed. In addition, the main challenges and potential directions for next generation cathodes have been indicated, which would be beneficial to researchers and engineers developing high-performance electrodes for advanced secondary batteries.

Advances of top-down synthesis approach for high-performance silicon anodes in Li-ion batteries

2021 ◽  
Author(s):  
Ansor Prima Yuda ◽  
Pierre Yosia Edward Koraag ◽  
Ferry Iskandar ◽  
Hutomo Suryo Wasisto ◽  
Afriyanti Sumboja
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Silicon Anode ◽  
Li Ion Batteries ◽  
Ultra High Energy ◽  
Li Ion ◽  
Synthesis Approach

With a remarkable theoretical specific capacity of ~4200 mAh g-1, silicon anode is at the forefront to enable lithium-ion batteries (LIBs) with ultra-high energy density. However, we have yet to...

Formation and Operating Mechanisms of Single-Crystalline Perovskite NaNbO3 Nanocubes/Few-Layered Nb2CTx MXene Hybrids towards Li-Ion Capacitors

2021 ◽  
Author(s):  
Li Qin ◽  
Yang Liu ◽  
Shuhao Zhu ◽  
Dongxu Wu ◽  
Guangyuan Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Power Density ◽  
Lithium Ion ◽  
High Energy ◽  
Single Crystalline ◽  
Long Duration ◽  
Li Ion

Lithium-ion capacitors (LICs), combining both merits of lithium-ion batteries and supercapacitors, possess high energy/power density and long-duration lifespan in one device. However, the dynamic imbalance between the positive and negative...

A low-cost and high performance ball-milled Si-based negative electrode for high-energy Li-ion batteries

2013 ◽  
Vol 6 (7) ◽  
pp. 2145 ◽  
Author(s):  
Magali Gauthier ◽  
Driss Mazouzi ◽  
David Reyter ◽  
Bernard Lestriez ◽  
Philippe Moreau ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Negative Electrode ◽  
High Energy ◽  
Li Ion Batteries ◽  
Li Ion

scholarly journals Unveiling BiVO4 nanorods as a novel anode material for high performance lithium ion capacitors: beyond intercalation strategies

2018 ◽  
Vol 6 (14) ◽  
pp. 6096-6106 ◽  
Author(s):  
Deepak P. Dubal ◽  
Kolleboyina Jayaramulu ◽  
Radek Zboril ◽  
Roland A. Fischer ◽  
Pedro Gomez-Romero
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Power ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Power Density ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene ◽  
Li Ion

A high energy and high power density Li-ion capacitor based on BiVO4 nanorods (left) and partially reduced graphene oxide nanosheets (PRGO, on right) for EV applications.

Sign in / Sign up

Export Citation Format

Share Document