Temperature evolution is critical in monitoring the status of Li-ion batteries (LIBs), however, it is a challenge to develop precise thermometry down to the nanoscale regime and instantly detect the internal temperature of pouch-type LIBs. Herein, a Boltzmann type luminescence thermometry is designed and prepared in halide double perovskite CsNaLuCl:Yb/Er upconversion nanocrystals and further fabricate the flexible fluorescence polymer optical fiber (POF) sensor for their in situ and real-time temperature monitoring. The thermally enhanced upconversion luminescence of the nanocrystals thermometry ensures sensitive temperature sensing in a wide temperature range, and the POF sensor exhibits stable and repeatable responses to temperature with a deviation of ±0.13 at 30 °C. Through the implementation of fluorescence POF sensors into pouch cell, the dynamic thermal state inside the LIBs is instantaneously captured without affecting the normal operations during battery cycling. This work paves the way for fluorescence POF sensors assisting in battery thermal management and evaluating the performance of battery materials for further developing LIBs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/smll.202501651 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Vacancy Ordered Double Perovskites [N(CH3)4]2SnX6 (X = Cl, Br, I): Thermal Phase Transition and Wide Range Optical Absorption.
Chem Asian J
March 2025
Jawaharlal Nehru Centre for Advanced Scientific Research, New Chemistry Unit & Internation Centre for Materials Science, Jakkur P. O., 560064, Bangalore, INDIA.
TMA)2SnX6 (TMA = tetramethylammonium; X = Cl, Br, I) compounds form vacancy-ordered halide double perovskites (VODPs) with TMA+ cation in the A-site, Sn4+ cation in the M-site and X- anion in the halide site. This study reports the synthesis and structural phase transition of (TMA)₂SnCl₆, (TMA)2SnCl0.7Br5.
View Article and Find Full Text PDFFiber Optic Boltzmann Thermometry in a Doped Halide Double Perovskite for Dynamic Temperature Monitoring in Pouch Cell.
Small
March 2025
The State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, China.
Temperature evolution is critical in monitoring the status of Li-ion batteries (LIBs), however, it is a challenge to develop precise thermometry down to the nanoscale regime and instantly detect the internal temperature of pouch-type LIBs. Herein, a Boltzmann type luminescence thermometry is designed and prepared in halide double perovskite CsNaLuCl:Yb/Er upconversion nanocrystals and further fabricate the flexible fluorescence polymer optical fiber (POF) sensor for their in situ and real-time temperature monitoring. The thermally enhanced upconversion luminescence of the nanocrystals thermometry ensures sensitive temperature sensing in a wide temperature range, and the POF sensor exhibits stable and repeatable responses to temperature with a deviation of ±0.
View Article and Find Full Text PDFInterfacial Structural Transformation for the Synthesis of Lead-Free Double Perovskite Nanocrystals.
Adv Sci (Weinh)
March 2025
Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China.
Lead-free halide double perovskite nanocrystals have emerged as one of the most promising alternatives to lead halide perovskite nanocrystals due to their non-toxicity, high stability, and outstanding optoelectronic properties. However, conventional synthesis methods often result in impurities due to increased constituent elements. In this study, an efficient water-oil biphasic interface-driven approach is introduced for synthesizing lead-free double perovskite nanocrystals, enabling controlled structural transformations from 0D to 2D and 3D structures.
View Article and Find Full Text PDFSingle-Electron-Transfer-Mediated Carbonylation Reactions.
Acc Chem Res
March 2025
Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
ConspectusTransition-metal-catalyzed carbonylation coupling methods have been accepted as an essential tool for producing carbonylated products over the past few decades. Despite its long-standing history and widespread industrial applications, several challenges remain in carbonylation chemistry. These include reliance on precious metal catalysts, the need of high-energy radiation, difficulties in carbonylation of unactivated chemical bonds, etc.
View Article and Find Full Text PDFSynergistic Anion-Cation Chemistry Enables Highly Stable Zn Metal Anodes.
J Am Chem Soc
March 2025
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, P. R. China.
Engineering aqueous electrolytes with an ionic liquid (IL) for the zinc (Zn) metal anode has been reported to enhance the electrochemical performances of the Zn metal batteries (ZMBs). Despite these advancements, the effects of IL and the mechanisms involving their anions and cations have been scarcely investigated. Here, we introduce a novel electrolyte design strategy that synergizes anion-cation chemistry using a halogen-based IL and elucidates the underlying mechanism.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!