Bifunctional Liquid Metals Allow Electrical Insulating Phase Change Materials to Dual-Mode Thermal Manage the Li-Ion Batteries

Nano-Micro Letters, Год журнала: 2022, Номер 14(1)

Опубликована: Окт. 10, 2022

Phase change materials (PCMs) are expected to achieve dual-mode thermal management for heating and cooling Li-ion batteries (LIBs) according real-time conditions, guaranteeing the reliable operation of LIBs in both cold hot environments. Herein, we report a liquid metal (LM) modified polyethylene glycol/LM/boron nitride PCM, capable managing through photothermal effect passive conduction. Its geometrical conformation pathways fabricated ice-template strategy conformable LIB's structure heat-conduction characteristic. Typically, soft deformable LMs on boron surface, serving as bridges reduce contact resistance among adjacent fillers realize high conductivity 8.8 7.6 W m-1 K-1 vertical in-plane directions, respectively. In addition, LM with excellent performance provides PCM efficient battery capability if employing controllable lighting system. As proof-of-concept, this is manifested heat an appropriate temperature range environment lower working by more than 10 °C at charging/discharging rate, opening opportunities durable evitable risk runaway.

Язык: Английский

---

Functional Materials and Innovative Strategies for Wearable Thermal Management Applications

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Июнь 29, 2023

Thermal management is essential in our body as it affects various bodily functions, ranging from thermal discomfort to serious organ failures, an example of the worst-case scenario. There have been extensive studies about wearable materials and devices that augment thermoregulatory functionalities body, employing diverse systematic approaches attaining homeostasis. This paper reviews recent progress functional contribute wearables, particularly emphasizing strategic methodology regulate temperature. exist several methods promote personal a form. For instance, we can impede heat transfer using thermally insulating material with extremely low conductivity or directly cool skin surface. Thus, classify many into two branches, passive active modes, which are further subdivided specific strategies. Apart discussing strategies their mechanisms, also identify weaknesses each strategy scrutinize its potential direction should follow make substantial contributions future regulatory industries.

Язык: Английский

---

Ultrahigh thermal conductive polymer composites by the 3D printing induced vertical alignment of carbon fiber

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(20), С. 10971 - 10983

Опубликована: Янв. 1, 2023

Thermal conductive polymer composite prepared by 3D printing technology, which has a highly vertically oriented carbon fiber structure.

Язык: Английский

---

Microfluidic‐Assembled Covalent Organic Frameworks@Ti₃C₂T_x MXene Vertical Fibers for High‐Performance Electrochemical Supercapacitors

Advanced Materials, Год журнала: 2023, Номер 35(46)

Опубликована: Авг. 24, 2023

The delicate design of innovative and sophisticated fibers with vertical porous skeleton eminent electrochemical activity to generate directional ionic pathways good faradic charge accessibility is pivotal but challenging for realizing high-performance fiber-shaped supercapacitors (FSCs). Here, hierarchically ordered hybrid fiber combined vertical-aligned conductive Ti3 C2 Tx MXene (VA-Ti3 ) interstratified electroactive covalent organic frameworks LZU1 (COF-LZU1) by one-step microfluidic synthesis developed. Due the incorporation channels, abundant redox active sites large accessible surface area throughout electrode, VA-Ti3 @COF-LZU1 express exceptional gravimetric capacitance 787 F g-1 in a three-electrode system. Additionally, solid-state asymmetric FSCs deliver prominent energy density 27 Wh kg-1 , 398 cycling life 20 000 cycles. key high storage ability originates from decreased ions adsorption ameliorative distribution vertically aligned fiber, accelerating transportation/accommodation interfacial electrons transfer. Benefiting excellent performance, offer sufficient supply power watches, flags, digital display tubes as well be integrated sensors detect pulse signals, which opens promising route architecting advanced toward carbon neutrality market beyond energy-storage technology.

Язык: Английский

---

Highly thermally conductive and soft thermal interface materials based on vertically oriented boron nitride film

Composites Part B Engineering, Год журнала: 2024, Номер 272, С. 111219 - 111219

Опубликована: Янв. 10, 2024

Язык: Английский

---

Low thermal contact resistance boron nitride nanosheets composites enabled by interfacial arc-like phonon bridge

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Апрель 4, 2024

Abstract Two-dimensional materials with ultrahigh in-plane thermal conductivity are ideal for heat spreader applications but cause significant contact resistance in complex interfaces, limiting their use as interface materials. In this study, we present an interfacial phonon bridge strategy to reduce the of boron nitride nanosheets-based composites. By using a low-molecular-weight polymer, able manipulate alignment nanosheets through sequential stacking and cutting, ultimately achieving flexible thin films layer arc-like structure superimposed on perpendicularly aligned ones. Our results suggest that can act lower by 70% reducing back-reflection enhancing coupling efficiency at boundary. The resulting composites exhibit ultralow 0.059 2 KW −1 , demonstrating effective cooling fast-charging batteries thickness 2-5 times thinner than commercial products.

Язык: Английский

---

Microfluidic Synthesis of Multifunctional Micro-/Nanomaterials from Process Intensification: Structural Engineering to High Electrochemical Energy Storage

ACS Nano, Год журнала: 2024, Номер 18(32), С. 20957 - 20979

Опубликована: Авг. 1, 2024

Multifunctional micro-/nanomaterials featuring functional superiority and high value-added physicochemical nature have received immense attention in electrochemical energy storage. Microfluidic synthesis has become an emergent technology for massively producing multifunctional with tunable microstructure morphology due to its rapid mass/heat transfer precise fluid controllability. In this review, the latest progresses achievements microfluidic-synthesized are summarized via reaction process intensification, micro-/nanostructural engineering storage applications. The intensification mechanisms of various micro-/nanomaterials, including quantum dots (QDs), metal materials, conducting polymers, metallic oxides, polyanionic compounds, metal–organic frameworks (MOFs) two-dimensional (2D) discussed. Especially, structural principles as-fabricated such as vertically aligned structure, heterostructure, core–shell microsphere, introduced. Subsequently, application as-prepared is clarified supercapacitors, lithium-ion batteries, sodium-ion all-vanadium redox flow dielectric capacitors. Finally, current problems future forecasts illustrated.

Язык: Английский

---

Thermal interface materials: From fundamental research to applications

SusMat, Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

Abstract The miniaturization, integration, and high data throughput of electronic chips present challenging demands on thermal management, especially concerning heat dissipation at interfaces, which is a fundamental scientific question as well an engineering problem—a death problem called in semiconductor industry. A comprehensive examination interfacial resistance has been given from physics perspective 2022 Review Modern Physics . Here, we provide detailed overview materials perspective, focusing the optimization structure compositions interface (TIMs) interact/contact with source sink. First, discuss impact conductivity, bond line thickness, contact TIMs. Second, it pointed out that there are two major routes to improve transfer through interface. One reduce TIM's ( R TIM ) TIMs strategies like incorporating conductive fillers, enhancing treatment techniques. other c by improving effective contact, strengthening bonding, utilizing mass gradient alleviate vibrational mismatch between source/sink. Finally, such challenges theories, potential developments sustainable TIMs, application AI design also explored.

Язык: Английский

---

Emerging trends and challenges in thermal interface materials: A comprehensive perspective from fundamentals to applications

Materials Science and Engineering R Reports, Год журнала: 2025, Номер 164, С. 100968 - 100968

Опубликована: Март 10, 2025

Язык: Английский

---

Large-scale production of boron nitride nanosheets for flexible thermal interface materials with highly thermally conductive and low dielectric constant

Composites Part B Engineering, Год журнала: 2023, Номер 271, С. 111164 - 111164

Опубликована: Дек. 21, 2023

Язык: Английский

---