A5074138693- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Chemical Synthesis and Characterization
- Polyoxometalates: Synthesis and Applications
- Conducting polymers and applications
- Inorganic Chemistry and Materials
- Advanced battery technologies research
- Graphene research and applications
- Radiation Effects in Electronics
- Semiconductor materials and interfaces
- Semiconductor materials and devices
- Thermal Expansion and Ionic Conductivity
- Advanced Sensor and Energy Harvesting Materials
- Supercapacitor Materials and Fabrication
Kyungpook National University
2021-2025
LiFePO4 emerges as a viable alternative to cobalt-containing cathodes, such Li[Ni1-x-y Mn x Co y ]O2 and Al ]O2. As Fe is abundant in nature, low-cost material. Moreover, stable structure of imparts long service life thermal stability. However, the practical implementation cathode energy storage devices impeded by its low density high ionic/electrical resistance. Herein, electrode with active material loading resistance through dry process reported for first time. The not only enables...
Lithium (Li) metal is considered an ultimate anode owing to its high specific capacity and energy density. However, uncontrolled Li dendrite growth low Coulombic efficiency have limited the application of metal. Among various strategies introduced address these limitations, surface modification polyolefin separators with functional materials has been widely adopted for improving mechanical thermal stabilities polymer protect separator from penetration dendrites. Herein, we report a new that...
Lithium (Li) metal is a promising anode for next-generation batteries owing to its ultrahigh theoretical capacity (3,860 mAh g−1) and the lowest reduction potential (−3.04 vs SHE at RT). However, development of Li-metal (LMBs) still in research stage due inherent problems related growth Li dendrites unlimited volume change metal. Among diverse approaches, introduction functional separators regarded as an effective strategy improving safety electrochemical performance LMBs. Herein, we...
Abstract Recent advancements in inorganic solid electrolytes (ISEs), achieving sodium (Na)‐ion conductivities exceeding 10 ‐2 S cm ‐1 at room temperature (RT), have generated significant interest the development of solid‐state batteries (SSSBs). However, ISEs face challenges such as their limited electrochemical stability windows (ESWs) and compatibility issues with high‐capacity, high‐voltage cathode materials Na metal anodes. The success high‐performance SSSBs hinges on developing ideal...
Lithium iron phosphate (LFP) cathodes are promising materials for energy storage device applications due to their thermal stability, chemical robustness, cost‐effectiveness, and long lifespan. However, low electronic ionic conductivity, as well challenges in achieving high packing density thick electrodes, limit practical implementation. In this study, a gradient porosity LFP electrode with areal capacity of 6.3 mAh cm − 2 an 2.5 g cc −1 is proposed. electrodes porosity, binder migration...
Lithium (Li) metal anodes have received intensive attention owing to its high specific capacity and low redox potential. However, chronic issues related dendritic Li growth hindered the pragmatic use of Li-metal batteries (LMBs). As one feasible approaches, depositing a functional material on separator is an efficient strategy for improving electrochemical stability LMBs. In this paper, we report functionalized separator, comprising nitrided niobium dioxide (named as n-NbO2) polypropylene...
Li metal has been intensively investigated as a next-generation rechargeable battery anode. However, its practical application the anode material is hindered by deposition of dendritic Li. To suppress growth, introducing modified separator considered an effective strategy since it promotes uniform ion flux and strengthens thermal mechanical stability. Herein, we present for surface modification separator, which involves coating with piezoelectric (PM). The PM-coated shows higher resistance...
Silicon, as a promising next-generation anode material, has drawn special attention from industries due to its high theoretical capacity (around 3600 mAh g−1) in comparison with conventional electrodes, e.g., graphite. However, the fast fading resulted by large volume change hinders pragmatic use of Si anodes for lithium ion batteries. In this work, we propose an efficient strategy improve cyclability upcycled nanomaterials through simple battery operation protocol. When utilization degree...
Dry Electrode Technology electrode technology has emerged as a promising strategy for manufacturing thick electrodes in the battery industry. In article number 2300302, Patrick Joohyun Kim, Taeseup Song, Junghyun Choi, and co-workers report dry-processed film LiFePO4 with high active material loading. The dry process not only improves electrochemical performance but also achieves energy density low ionic/electrical resistance.
Abstract Structural energy-storage devices are receiving considerable attention because they can simultaneously store electrical energy and provide structural support, thereby offering high volumetric gravimetric capacities. Although carbon fiber–based materials have been the most popular choice for current collectors, their conductivity specific surface area relatively low; this limits ability to load other active on collector. Carbon nanotube (CNT) fiber is a promising alternative...