Improved interfacial chemistry and enhanced high voltage-resistant capability of in-situ polymerized electrolyte for LiNi0.8Co0.15Al0.05O2-Li batteries

2021 ◽  
Author(s):  
Yue Ma ◽  
Qifang Sun ◽  
Zhenyu Wang ◽  
Su Wang ◽  
Ying Zhou ◽  
...  
Keyword(s):  
Energy Density ◽  
High Voltage ◽  
Lithium Batteries ◽  
Interfacial Chemistry ◽  
Layered Oxide ◽  
Li Batteries

Ni-rich layered oxide LiNi0.8Co0.15Al0.05O2 (NCA) is one of the most promising cathode candidates for higher energy density lithium batteries. However, the extensive application of NCA is hindered due to the...

In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High‐Voltage Organic Cathodes for Lithium Batteries

2020 ◽  
Vol 59 (29) ◽  
pp. 11992-11998 ◽  
Author(s):  
Chen Zhao ◽  
Zifeng Chen ◽  
Wei Wang ◽  
Peixun Xiong ◽  
Benfang Li ◽  
...  
Keyword(s):  
High Voltage ◽  
Lithium Batteries ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life

In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High‐Voltage Organic Cathodes for Lithium Batteries

2020 ◽  
Vol 132 (29) ◽  
pp. 12090-12096
Author(s):  
Chen Zhao ◽  
Zifeng Chen ◽  
Wei Wang ◽  
Peixun Xiong ◽  
Benfang Li ◽  
...  
Keyword(s):  
High Voltage ◽  
Lithium Batteries ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life

High-voltage performance of concentration-gradient Li[Ni0.6Co0.2Mn0.2]O2 layered oxide cathode materials for lithium batteries

2018 ◽  
Vol 42 (8) ◽  
pp. 5868-5874 ◽  
Author(s):  
Xianglei Chen ◽  
Xiaobo Jia ◽  
Yanyu Qu ◽  
De Li ◽  
Daming Chen ◽  
...  
Keyword(s):  
High Voltage ◽  
Lithium Batteries ◽  
Cathode Materials ◽  
Concentration Gradient ◽  
Layered Oxide ◽  
Oxide Cathode ◽  
Oxide Cathodes ◽  
Co Precipitation ◽  
Voltage Performance ◽  
Layered Oxide Cathodes

High-voltage performance concentration-gradient Li[Ni0.6Co0.2Mn0.2]O2 (CG-NCM622) layered oxide cathodes consisting of Li[Ni0.8Co0.1Mn0.1]O2 cores and stable outer layers of Li[Ni1/3Co1/3Mn1/3]O2 were synthesized via co-precipitation.

In-Situ Formed Lithium Ionic Conductor Thin Film on the Surface of High-Crystal-Layered LiCoO2 as High-Voltage Cathode Materials

2021 ◽  
Author(s):  
Liewu Li ◽  
Qi Yuan ◽  
Shenghua Ye ◽  
Yonghuan Fu ◽  
Xiangzhong Ren ◽  
...  
Keyword(s):  
Thin Film ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Cathode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Ionic Conductor

The layered LiCoO2 cathode plays a key role in high-energy-density lithium-ion batteries (LIBs), delivering a capacity of ~185 mAh g−1 at a high cut-off voltage of 4.5 V (vs. Li/Li+). However, its...

In-situ electrical-resistivity measurements in the high-voltage electron microscope

1978 ◽  
Vol 36 (1) ◽  
pp. 68-69
Author(s):  
W. E. King
Keyword(s):  
Electrical Resistivity ◽  
Electron Microscope ◽  
High Voltage ◽  
Resistivity Measurements ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
High Voltage Electron ◽  
Wide Range ◽  
Helium Gas

A side-entry type, helium-temperature specimen stage that has the capability of in-situ electrical-resistivity measurements has been designed and developed for use in the AEI-EM7 1200-kV electron microscope at Argonne National Laboratory. The electrical-resistivity measurements complement the high-voltage electron microscope (HVEM) to yield a unique opportunity to investigate defect production in metals by electron irradiation over a wide range of defect concentrations.A flow cryostat that uses helium gas as a coolant is employed to attain and maintain any specified temperature between 10 and 300 K. The helium gas coolant eliminates the vibrations that arise from boiling liquid helium and the temperature instabilities due to alternating heat-transfer mechanisms in the two-phase temperature regime (4.215 K). Figure 1 shows a schematic view of the liquid/gaseous helium transfer system. A liquid-gas mixture can be used for fast cooldown. The cold tip of the transfer tube is inserted coincident with the tilt axis of the specimen stage, and the end of the coolant flow tube is positioned without contact within the heat exchanger of the copper specimen block (Fig. 2).

Remote On-Line Control of a High-Voltage in situ Transmission Electron Microscope with A Rational User Interface

1996 ◽  
Vol 54 ◽  
pp. 384-385
Author(s):  
M.A. O’Keefe ◽  
J. Taylor ◽  
D. Owen ◽  
B. Crowley ◽  
K.H. Westmacott ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
User Interface ◽  
Transmission Electron Microscope ◽  
High Voltage ◽  
Materials Science ◽  
Transmission Electron ◽  
On Line ◽  
Electron Microscopes

Remote on-line electron microscopy is rapidly becoming more available as improvements continue to be developed in the software and hardware of interfaces and networks. Scanning electron microscopes have been driven remotely across both wide and local area networks. Initial implementations with transmission electron microscopes have targeted unique facilities like an advanced analytical electron microscope, a biological 3-D IVEM and a HVEM capable of in situ materials science applications. As implementations of on-line transmission electron microscopy become more widespread, it is essential that suitable standards be developed and followed. Two such standards have been proposed for a high-level protocol language for on-line access, and we have proposed a rational graphical user interface. The user interface we present here is based on experience gained with a full-function materials science application providing users of the National Center for Electron Microscopy with remote on-line access to a 1.5MeV Kratos EM-1500 in situ high-voltage transmission electron microscope via existing wide area networks. We have developed and implemented, and are continuing to refine, a set of tools, protocols, and interfaces to run the Kratos EM-1500 on-line for collaborative research. Computer tools for capturing and manipulating real-time video signals are integrated into a standardized user interface that may be used for remote access to any transmission electron microscope equipped with a suitable control computer.

Experimental and numerical analysis to identify the performance limiting mechanisms in solid-state lithium cells under pulse operating conditions

2019 ◽  
Vol 21 (41) ◽  
pp. 22740-22755 ◽  
Author(s):  
Mei-Chin Pang ◽  
Yucang Hao ◽  
Monica Marinescu ◽  
Huizhi Wang ◽  
Mu Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Numerical Analysis ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Safety Concern ◽  
Lithium Ion ◽  
Thermal Runaway ◽  
Operating Conditions ◽  
Lithium Cells

Solid-state lithium batteries could reduce the safety concern due to thermal runaway while improving the gravimetric and volumetric energy density beyond the existing practical limits of lithium-ion batteries.

Cyano-reinforced in-situ polymer electrolyte enabling long-life cycling for high-voltage lithium metal batteries

2021 ◽  
Vol 37 ◽  
pp. 215-223
Author(s):  
Zhaolin Lv ◽  
Qian Zhou ◽  
Shu Zhang ◽  
Shanmu Dong ◽  
Qinglei Wang ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
High Voltage ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Long Life
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