Article
Chemistry, Multidisciplinary
Freddy Baltazar Iniguez, Huimin Jeong, Ahmed Yousef Mohamed, Paul Maldonado Nogales, Hwanjun Choi, Soon-Ki Jeong, Jong Bae Park, Yang Soo Kim, Deok-Yong Cho
Summary: We investigated the structural and electrochemical properties of Li-Ti-O (LTO) and CNT-added LTO for anode material in secondary Li-ion batteries. The study focused on elucidating the effects of microstructural evolution in LTO and the addition of CNT on battery functionality. The results showed that the degradation in electrochemical property of LTO is mainly due to an increase in Li content, and the addition of CNT can greatly increase Li capacity while not significantly changing the LTO composition and redox kinetics. This suggests that surface engineering through CNT addition is a promising way to improve the performance of LTO-based anode material.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Thermodynamics
Peng Peng, Yiwei Wang, Fangming Jiang
Summary: This study develops a three-dimensional numerical model to investigate the thermal behavior of a cylindrical lithium-ion battery module with a compact hybrid cooling system of phase change material (PCM) and heat pipes. The results show that the discharge process, PCM properties, and charge-discharge cycles affect the distribution of PCM liquid fraction, temperature difference, and thermal performance of the battery module.
APPLIED THERMAL ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Mokwon Kim, Hyunpyo Lee, Hyuk Jae Kwon, Seong-Min Bak, Cherno Jaye, Daniel A. Fischer, Gabin Yoon, Jung O. Park, Dong-Hwa Seo, Sang Bok Ma, Dongmin Im
Summary: A newly proposed strategy involves designing a highly conductive ruthenium-based composite as a carbon-free cathode to improve the cycle life and capacity of solid-state lithium-oxygen batteries. By utilizing this approach, the batteries achieved a specific capacity of 200 milliampere hour per gram over 665 discharge/charge cycles, showcasing a notable improvement compared to existing cathodes.
Article
Computer Science, Information Systems
Simone Barcellona, Silvia Colnago, Paolo Montrasio, Luigi Piegari
Summary: Lithium-ion batteries are attractive for electric vehicles but sensitive to temperature. Thermal management systems are needed to mitigate temperature issues. This paper proposes an integrated electro-thermal model to estimate the thermal behavior of each battery cell in a battery pack.
Article
Chemistry, Applied
Shiqiang Liu, Tianyi Ma, Zhen Wei, Guangli Bai, Huitian Liu, Dapeng Xu, Zhongqiang Shan, Fang Wang
Summary: The phase transition reaction of the separator was identified as the key factor affecting the thermal runaway of lithium-ion batteries in a low state of charge.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Yu Wang, Dongsheng Ren, Xuning Feng, Li Wang, Minggao Ouyang
Summary: The study found that thermal stability of NCM cathode materials is influenced by nickel content and particle structure, with higher nickel content and polycrystal structure showing worse thermal stability. Increasing nickel content leads to a decrease in thermal reaction temperature and activation energy, while polycrystal materials exhibit a slight decrease in activation energy compared to single-crystal materials, with an increase in total enthalpy.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
P. Teichert, H. Jahnke, E. Figgemeier
Summary: Monocrystalline NMC811 still faces particle cracking issues under moderate abusive conditions, leading to structural degradation and accelerated aging.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Wei Zhong, Ziqi Zeng, Shijie Cheng, Jia Xie
Summary: Prelithiation technology is one of the most effective methods to compensate for the loss of active lithium. This review analyzes the factors inducing lithium loss and investigates the mechanisms and effects of prelithiation. The emerging advanced prelithiation technologies and key issues are systematically summarized. Hybrid replenishment and lithium storage technologies are proposed to provide a reference for developing prelithiation technology.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Civil
Junchao Zhao, Song Lu, Yangyang Fu, Weitong Ma, Yuan Cheng, Heping Zhang
Summary: The study found that under enclosed conditions, the concentration of flammable gases increased with the state of charge (SOC), leading to an increased risk of gas explosion. However, under ventilated conditions, the risk of rupture decreased. External pressure was identified as a key factor impacting the case rupture.
FIRE SAFETY JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
S. Vauthier, M. Alvarez-Tirado, G. Guzman-Gonzalez, L. C. Tome, S. Cotte, L. Castro, A. Gueguen, D. Mecerreyes, N. Casado
Summary: The role of binders is crucial to achieve high performance and long cycle lives in next-generation electrodes for lithium batteries. In this study, PDADMA poly(ionic liquid)s with fluorinated anions were used as cathode binders in Li-ion and Li-air batteries, showing improved cell performances and enhanced capacity values, rate performance, and cycling stability. The proposed fluorinated PDADMA Poly(ionic liquid)s can be a highly competitive alternative to conventional binders used nowadays in Li-ion and Li-air batteries.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Physical
Zesen Wei, Chen Liang, Lihua Jiang, Linjun Wang, Siyuan Cheng, Qingkui Peng, Lei Feng, Wenhua Zhang, Jinhua Sun, Qingsong Wang
Summary: This study focuses on the secondary particles of different Li(NixCoyMnz)O-2 cathodes, investigating the formation and condensation of oxygen vacancies on the surface, as well as the concentration distribution of oxygen vacancies inside the particles after thermal failure. The results show that increasing the Ni content promotes the diffusion of oxygen vacancies from the surface to the bulk, leading to an increase in oxygen vacancy concentration and the release of more oxygen. When the Ni content reaches 0.8, both the surface layer and bulk of the secondary particles exhibit high oxygen vacancy concentrations, resulting in overall failure. Furthermore, the formation and evolution of intergranular cracks inside the secondary particles depend on the oxygen vacancy concentration gradient.
ENERGY STORAGE MATERIALS
(2022)
Review
Electrochemistry
Yao Liu, Wei Li, Yongyao Xia
Summary: While carbon, oxide, and silicon-based materials have limitations in current LIB applications, polyanionic compounds have gained attention for their ability to stabilize structures, adjust redox couples, and provide migration channels for guest ions, leading to electrode materials with long-term cycling, high energy density, and outstanding rate capability.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Shinji Kondou, Yusuke Sakashita, Xiaoxiao Yang, Kei Hashimoto, Kaoru Dokko, Masayoshi Watanabe, Kazuhide Ueno
Summary: The study found that poly(LiSTFSA) exhibited the highest ionic conductivity in the lowest polar mixture at the highest salt concentration, attributed to a unique conduction phenomenon. This provides insights into a new design strategy for nonaqueous liquid electrolytes for LIBs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Automation & Control Systems
Jinhui Zhou, Wenjing Shen, Zhengwei Ma, Xiaolin Mou, Yu Zhou, Han-Xiong Li, Liqun Chen
Summary: This article proposes a Chebyshev-Galerkin-based thermal fault detection and localization framework for the pouch-type Li-ion battery under limited sensing. The method utilizes Chebyshev functions to construct spatial basis functions and derives time coefficients through the Galerkin method. The proposed method demonstrates effectiveness in fault detection and localization through simulations and experiments.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Chemistry, Physical
Maya Horii, Rebecca J. Christianson, Heena Mutha, John Christopher Bachman
Summary: The microstructure of solid electrolyte has a significant impact on the overall performance of batteries. To maintain high energy and power output, the conductivity to thickness ratio of the electrolyte must be above 10 S m(-2), and the grain size needs to be at least 10,000 times larger than the grain boundary thickness.
JOURNAL OF POWER SOURCES
(2022)