A5050006908- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Catalysis and Oxidation Reactions
- Semiconductor materials and devices
- Advancements in Solid Oxide Fuel Cells
Qingdao Institute of Bioenergy and Bioprocess Technology
2022-2024
Qinghai New Energy (China)
2024
Institute of Process Engineering
2019-2021
Chinese Academy of Sciences
2021
University of Chinese Academy of Sciences
2021
As the most widely used energy storage device in consumer electronic and electric vehicle fields, lithium ion battery (LIB) is closely related to our daily lives, on which its safety of paramount importance. LIB a typical multidisciplinary product. A tiny single cell composed both organic inorganic materials multi scale. In addition, relatively closure property made it difficult be studied line, let alone pack or system level. Safety, often manifested by stability abuse, including...
Abstract Redox from the holes at O 2p orbitals is a well‐known phenomenon in Li‐rich Mn‐based batteries. However, such an anionic redox process results formation of 2 , leading to structural instability owing unstable holes. Herein, swing‐like non‐isothermal sintering technique used stabilize lattice oxygen by suppressing during charging. It reduces both number intrinsic vacancies oxides and charging as compared with traditional constant high‐temperature sintering. Consequently, generated...
Abstract Lithium difluoro(oxalato) borate (LiDFOB) has been widely investigated in lithium‐ion batteries (LIBs) owing to its advantageous thermal stability and excellent aluminum passivation property. However, LiDFOB tends suffer from severe decomposition generate a lot of gas species (e.g., CO 2 ). Herein, novel cyano‐functionalized lithium salt, namely difluoro(1,2‐dihydroxyethane‐1,1,2,2‐tetracarbonitrile) (LiDFTCB), is innovatively synthesized as highly oxidative‐resistant salt alleviate...
Abstract Li‐rich layered oxides (LRLO) exhibit significant potential for use in all‐solid‐state lithium batteries (ASSLBs) owing to their high capacities and wide range of operating voltages. However, the practical application LRLO ASSLBs is hindered by severe failure carrier transport at solid–solid interface, which subsequently limits electrochemical activity these batteries. Here, spatially asynchronous activation mechanism presented. A spectroscopic study extending from surface into bulk...
Li-rich layered oxide (LLO) cathode materials with high specific capacities could significantly enhance the energy density of all-solid-state lithium batteries (ASSLBs). However, practical LLO in ASSLBs are extremely low due to poor initial activation. Here, scanning transmission electron microscopy situ differential phase contrast imaging was first used study activation mechanism Li1.2 Ni0.13 Co0.13 Mn0.54 O2 . Li-ion transport heterogeneity observed grains and across LLO/Li6 PS5 Cl...
Full concentration gradient lithium‐rich layered oxides are catching lots of interest as the next generation cathode for lithium‐ion batteries due to their high discharge voltage, reduced voltage decay and enhanced rate performance, whereas lithium residues on its surface impairs structure stability long‐term cycle performance. Herein, a facile multifunctional modification method is implemented eliminate full by wet chemistry reaction with tetrabutyl titanate post‐annealing process. It...
Li-rich layered oxide (LLO) cathode materials with mixed cationic and anionic redox reactions display much higher specific capacity than other traditional materials. However, the practical of LLO during first cycle in sulfide all-solid-state lithium-ion batteries (ASSLBs) is extremely low. Herein, contribution each reaction charging process qualitatively quantitatively analyzed by comprehensive electrochemical structural measurements. The results demonstrate that LiTMO2 (TM = Ni, Co, Mn)...
Abstract The high energy density, low cost, and toxicity of LiNi 0.8 Co 0.1 Mn O 2 (NCM811) cathodes has led to their large‐scale mass production. However, the poor interfacial stability between NCM811 organic electrolytes impairs long‐cycle performance lithium ions batteries. In this study, carbonized polymer dots (CPDs) are successfully introduced onto surface (NCM811@CPDs) via a simple physical mixing process. CPDs with rich oxygen functional groups form strong covalent bonds transition...
The development of all-solid-state lithium batteries with high energy density, long cycle life, low cost and safety is one the important directions for developing next-generation lithium-ion batteries. Lithium-rich cathode materials have been widely used in liquid their higher discharge specific capacity (> 250 mAh/g) density 900 Wh/kg), thermal stability raw material cost. With rapid high-performance lithium-rich solid-state electrolytes batteries, application expected to make a...
Abstract Li‐rich layered oxide (LLO) cathode materials with high specific capacities could significantly enhance the energy density of all‐solid‐state lithium batteries (ASSLBs). However, practical LLO in ASSLBs are extremely low due to poor initial activation. Here, scanning transmission electron microscopy situ differential phase contrast imaging was first used study activation mechanism Li 1.2 Ni 0.13 Co Mn 0.54 O 2 . Li‐ion transport heterogeneity observed grains and across LLO/Li 6 PS 5...
Abstract Lithium difluoro(oxalato) borate (LiDFOB) has been widely investigated in lithium‐ion batteries (LIBs) owing to its advantageous thermal stability and excellent aluminum passivation property. However, LiDFOB tends suffer from severe decomposition generate a lot of gas species (e.g., CO 2 ). Herein, novel cyano‐functionalized lithium salt, namely difluoro(1,2‐dihydroxyethane‐1,1,2,2‐tetracarbonitrile) (LiDFTCB), is innovatively synthesized as highly oxidative‐resistant salt alleviate...