A5101735099- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Reliability and Maintenance Optimization
- Analytical Chemistry and Chromatography
- Electron and X-Ray Spectroscopy Techniques
- Metal and Thin Film Mechanics
- GaN-based semiconductor devices and materials
- Industrial Vision Systems and Defect Detection
- Advanced DC-DC Converters
- Chemical Synthesis and Analysis
- Carbon Dioxide Capture Technologies
- Radiopharmaceutical Chemistry and Applications
- Acoustic Wave Resonator Technologies
- Thermal and Kinetic Analysis
- Surface and Thin Film Phenomena
- DNA and Nucleic Acid Chemistry
- Advanced Statistical Methods and Models
- Molecular spectroscopy and chirality
- Semiconductor Quantum Structures and Devices
- Electrocatalysts for Energy Conversion
- Molecular Spectroscopy and Structure
- Membrane-based Ion Separation Techniques
- Polymer crystallization and properties
Stanford University
2014-2025
China Automotive Battery Research Institute
2021-2024
SLAC National Accelerator Laboratory
2014-2024
Grinm Advanced Materials (China)
2021-2024
Southeast University
2023
University of Indianapolis
2019
Indiana University – Purdue University Indianapolis
2019
Southeast University
2012
Chinese Academy of Sciences
1998
State Key Laboratory of Polymer Physics and Chemistry
1998
Analysis of the isothermal, and nonisothermal crystallization kinetics Nylon-11 is carried out using differential scanning calorimetry. The Avrami equation that modified by Jeziorny can describe primary stage isothermal Nylon-11. In process, mechanism spherulitic nucleation growth are discussed; lateral folding surface free energies determined from Lauritzen–Hoffman ς = 10.68 erg/cm2 ςe 110.62 erg/cm2; work chain q 7.61 Kcal/mol. Ozawa analysis failed to behavior Combining equations, we...
Significance Rechargeable batteries offer great opportunities to target low-cost, high-capacity, and highly reliable systems for large-scale energy storage. This work introduces an aqueous nickel-hydrogen battery by using a nickel hydroxide cathode with industrial-level areal capacity of ∼35 mAh cm −2 bifunctional nickel-molybdenum-cobalt electrocatalyst as hydrogen anode effectively catalyze evolution oxidation reactions in alkaline electrolyte. The exhibits density ∼140 Wh kg −1...
Gas production analysis during the thermal runaway (TR) process plays a crucial role in early fire accident detection electric vehicles. To assess TR behavior of lithium-ion batteries and perform warning risk estimation, gas were conducted on LiNixCoyMn1-x-yO2/graphite LiFePO4/graphite cells under various trigger conditions. The findings indicate that unique signals can provide warnings earlier than temperature, voltage, pressure signals, with an advanced time ranging from 16 to 26 min. A...
The present work focuses on the state-of-charge (SOC) estimation of a lithium-ion battery in terms second-order extended Kalman filter (EKF). First, an equivalent circuit model is introduced to describe performance batteries. parameters are then identified through hybrid pulse power characterization experiments conducted over wide range temperatures (−10 55°C). A two-dimensional mathematical relationship established with respect SOC and temperature based dual-fifth polynomial expression....
Since 2014, the electric vehicle industry in China has flourished and been accompanied by rapid growth power battery led lithium-ion (LIB) development. Due to a variety of factors, LIBs have widely used, but user abuse quality issues explosion accidents that caused loss life property. Current strategies address safety concerns mainly involve enhancing intrinsic batteries strengthening controls with approaches such as early warning systems alert users before thermal runaway ensure safety. In...
Current direct observation of sensitive battery materials and interfaces primarily relies on two-dimensional (2D) imaging, leaving out their three-dimensional (3D) relationship. Here, we used cryogenic electron tomography (cryo-ET) to visualize the lithium metal anode in 3D at nanometer resolution microscopy (cryo-EM) reveal atomic details local regions. We imaged both freshly prepared calendar aged Li anodes development LiH dendrites Li-LiH interface, as well solid-electrolyte interphase...
Electrochemical pH-swing strategies offer a promising avenue for cost-effective and energy-efficient carbon dioxide (CO 2 ) capture, surpassing the traditional thermally activated processes humidity-sensitive techniques. The concept of elevating seawater’s alkalinity scalable CO capture without introducing additional chemical as reactant is particularly intriguing due to its minimal environmental impact. However, current commercial plants like chlor-alkali process or water electrolysis...
The hyperconjugation-controlled molecular conformation can tune the solvation properties of electrolytes, providing a new design principle for battery electrolyte engineering.
Tuning the solvation structure of lithium ions via electrolyte engineering has proven effective for metal (Li) anode. Further advancement that bypasses trial-and-error practice relies on establishment molecular design principles. Expanding scope our previous work solvent fluorination, we report here an alternative principle non-fluorinated solvents, which potentially have reduced cost, environmental impact, and toxicity. By studying ethers systematically, found short-chain acetals favor...
An estimation of the three parameter Weibull model parameters excludes outliers and gives an accurate description Li-ion battery capacity distribution, outperforming maximum likelihood estimated normal distribution.
The safety and efficiency of lithium‐ion batteries (LIBs) suggest a promising future for this technology, particularly in the automobile industry. However, thermal runaway—wherein LIB undergoes an uncontrollable increase temperature that may result smoke, fire, or explosion—represents important widely studied failure type. Since electrodes LIBs are manufactured from porous composite materials, their heterogeneity can significantly influence effective material characteristics microscale...
Fourier transform infrared spectrometer and THz-TDS were used to obtain the experimental spectrum of glycine below 600 cm<sup>-1</sup>, theoretical results one or more zwitterionic calculated by DFT at basis set b31yp 6- 31+g(d,p) level based on Gaussian 03 software package in FIR region. There is reasonable qualitative agreement between data crystalline observed line positions. Detailed assignments vibrational frequencies are discussed origins some analyzed contrast. The low frequency...
Acquiring the safe boundary of battery is beneficial to safety risk evaluation power and offer early warning signs. The method accurately measure overcharging capacity was studied, it verified through test three types batteries (ca. 55 Ah) with different energy densities (250, 280, 300 $\mathrm{W}\mathrm{h}\cdot \mathrm{k}\mathrm{g}^{-1}$). Additionally, accelerating rate calorimetry conducted study self-heating behavior cells under adiabatic conditions. effects active materials current on...
High quality semipolar (1122) AlN films have been grown on (1010) m -plane sapphire substrates with the help of dual moderate-temperature-grown (MTG) interlayers by using metal-organic chemical vapor deposition technology. The layer thickness film was determined employing relative optical transmittance spectrum measured ultraviolet-visible spectrophotometer. effect insertion 80 nm-thick MTG interlayer structural and properties investigated in detail based characterization results atomic...
A serious of non-polar a -plane AlGaN-based multiple quantum wells (MQWs) were successfully grown on the semi-polar r sapphire substrate with metal organic chemical vapor deposition technology. Intense MQWs-related emission peaks at an wavelength covered from 277-294 nm observed based photoluminescence measurement. It was found that employment trimethyl-aluminum (TMAl) flow duty-ratio modulation method which developed two-way pulsed-flows growth technique played crucial role to control Al...