Imperial College London

DrYunlongZhao

Faculty of EngineeringDyson School of Design Engineering

Senior Lecturer in Energy Storage and Bioelectronics Design
 
 
 
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Contact

 

yunlong.zhao Website

 
 
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Location

 

1M04ADyson BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

94 results found

Han H, Qin C, Xu D, Kar S, Castro FA, Wang Z, Fang J, Zhao Y, Hu Net al., 2024, Elevating intracellular action potential recording in cardiomyocytes: A precision-enhanced and biosafe single-pulse electroporation system., Biosens Bioelectron, Vol: 246

Action potentials play a pivotal role in diverse cardiovascular physiological mechanisms. A comprehensive understanding of these intricate mechanisms necessitates a high-fidelity intracellular electrophysiological investigative approach. The amalgamation of micro-/nano-electrode arrays and electroporation confers substantial advantages in terms of high-resolution intracellular recording capabilities. Nonetheless, electroporation systems typically lack precise control, and commonly employed electroporation modes, involving tailored sequences, may escalate cellular damage and perturbation of normal physiological functions due to the multiple or higher-intensity electrical pulses. In this study, we developed an innovative electrophysiological biosensing system customized to facilitate precise single-pulse electroporation. This advancement serves to achieve optimal and uninterrupted intracellular action potential recording within cardiomyocytes. The refinement of the single-pulse electroporation technique is realized through the integration of the electroporation and assessment biosensing system, thereby ensuring a consistent and reliable means of achieving stable intracellular access. Our investigation has unveiled that the optimized single-pulse electroporation technique not only maintains robust biosafety standards but also enables the continuous capture of intracellular electrophysiological signals across an expansive three-day period. The universality of this biosensing system, adaptable to various micro/nano devices, furnishes real-time analysis and feedback concerning electroporation efficacy, guaranteeing the sustained, secure, and high-fidelity acquisition of intracellular data, thereby propelling the field of cardiovascular electrophysiological research.

Journal article

Fan Y, Olsson E, Johannessen B, DAngelo AM, Thomsen L, Cowie B, Smillie L, Liang G, Lei Y, Bo G, Zhao Y, Pang WK, Cai Q, Guo Zet al., 2024, Manipulation of Transition Metal Migration via Cr-Doping for Better-Performance Li-Rich, Co-Free Cathodes, ACS Energy Letters, Vol: 9, Pages: 487-496

The irreversible migration of transition metals is a primary issue, resulting in detrimental structural changes and poor battery performance in Li-rich layered oxide (LLO) cathodes. Herein, we propose that manipulating the migration of transition metals between octahedral and tetrahedral sites effectively inhibits undesirable phase transitions by stabilizing the delithiated structure of LLOs at high potential. This is demonstrated by introducing Cr into the Co-free LLO, Li1.2Ni0.2Mn0.6O2. A new spinel-like phase, accompanied by significant lattice variation, was observed in the heavily cycled Co-free LLO at high potential by using operando synchrotron characterizations. Benefiting from a well-maintained solid-solution reaction after long-term cycling, Cr-doped Li1.2Ni0.2Mn0.6O2 delivers up to 99% of its initial discharge capacity after 200 cycles at 1C (∼200 mAh g-1), far surpassing the pristine material (∼74%). The work provides valuable insights into the structural degradation mechanisms of LLOs and underscores the importance of stabilizing the delithiated structure at high potential.

Journal article

Xu M, Liu Y, Yang K, Li S, Wang M, Wang J, Yang D, Shkunov M, Silva SRP, Castro FA, Zhao Yet al., 2024, Minimally invasive power sources for implantable electronics, Exploration, Vol: 4, ISSN: 2766-8509

As implantable medical electronics (IMEs) developed for healthcare monitoring and biomedical therapy are extensively explored and deployed clinically, the demand for non-invasive implantable biomedical electronics is rapidly surging. Current rigid and bulky implantable microelectronic power sources are prone to immune rejection and incision, or cannot provide enough energy for long-term use, which greatly limits the development of miniaturized implantable medical devices. Herein, a comprehensive review of the historical development of IMEs and the applicable miniaturized power sources along with their advantages and limitations is given. Despite recent advances in microfabrication techniques, biocompatible materials have facilitated the development of IMEs system toward non-invasive, ultra-flexible, bioresorbable, wireless and multifunctional, progress in the development of minimally invasive power sources in implantable systems has remained limited. Here three promising minimally invasive power sources summarized, including energy storage devices (biodegradable primary batteries, rechargeable batteries and supercapacitors), human body energy harvesters (nanogenerators and biofuel cells) and wireless power transfer (far-field radiofrequency radiation, near-field wireless power transfer, ultrasonic and photovoltaic power transfer). The energy storage and energy harvesting mechanism, configurational design, material selection, output power and in vivo applications are also discussed. It is expected to give a comprehensive understanding of the minimally invasive power sources driven IMEs system for painless health monitoring and biomedical therapy with long-term stable functions.

Journal article

Li H, Gong Y, Zhou H, Li J, Yang K, Mao B, Zhang J, Shi Y, Deng J, Mao M, Huang Z, Jiao S, Kuang Y, Zhao Y, Luo Set al., 2024, Author Correction: Ampere-hour-scale soft-package potassium-ion hybrid capacitors enabling 6-minute fast-charging., Nat Commun, Vol: 15

Journal article

Zhao Y, 2023, Ampere-hour-scale soft-package potassium-ion hybrid capacitors enabling 6-minute fast-charging, Nature Communications, Vol: 14, ISSN: 2041-1723

Extreme fast charging of Ampere-hour (Ah)-scale electrochemical energy storage devices targeting charging times of less than 10 minutes are desired to increase widespread adoption. However, this metric is difficult to achieve in conventional Li-ion batteries due to their inherent reaction mechanism and safety hazards at high current densities. In this work, we report 1 Ah soft-package potassium-ion hybrid supercapacitors (PIHCs), which combine the merits of high-energy density of battery-type negative electrodes and high-power density of capacitor-type positive electrodes. The PIHC consists of a defect-rich, high specific surface area N-doped carbon nanotube-based positive electrode, MnO quantum dots inlaid spacing-expanded carbon nanotube-based negative electrode, carbonate-based non-aqueous electrolyte, and a binder- and current collector-free cell design. Through the optimization of the cell configuration, electrodes, and electrolyte, the full cells (1 Ah) exhibit a cell voltage up to 4.8 V, high full-cell level specific energy of 140 Wh kg−1 (based on the whole mass of device) with a full charge of 6 minutes. An 88% capacity retention after 200 cycles at 10 C (10 A) and a voltage retention of 99% at 25 ± 1 °C are also demonstrated.

Journal article

Wang M, Yang K, Ji Y, Liao X, Zhang G, Masteghin MG, Peng N, Richheimer F, Li H, Wang J, Liu X, Yang S, Petrucco E, Shearing P, Castro FA, Silva SRP, Zhao Y, Pan F, Zhao Yet al., 2023, Developing highly reversible Li-CO<sub>2</sub> batteries: from on-chip exploration to practical application, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 16, Pages: 3960-3967, ISSN: 1754-5692

Journal article

Liu Y, Xu M, Zhao Y, Horri BAet al., 2023, Multi-doped ceria-based composite as a promising low-temperature electrolyte with enhanced ionic conductivity for steam electrolysis, MOLECULAR SYSTEMS DESIGN & ENGINEERING, Vol: 8, Pages: 992-1003, ISSN: 2058-9689

Journal article

Sun S, Wang J, Zong S, Ma Q, Li H, Chen X, Cui X, Yang K, Cai Q, Zhao Y, Yan Wet al., 2023, Integration Plasma Strategy Controlled Interfacial Chemistry Regulation Enabling Planar Lithium Growth in Solid-State Lithium Metal Batteries, ADVANCED FUNCTIONAL MATERIALS, ISSN: 1616-301X

Journal article

Meng J, Yao X, Hong X, Zhu L, Xiao Z, Jia Y, Liu F, Song H, Zhao Y, Pang Qet al., 2023, A solution-to-solid conversion chemistry enables ultrafast-charging and long-lived molten salt aluminium batteries, NATURE COMMUNICATIONS, Vol: 14

Journal article

Gong Y, Li J, Yang K, Li S, Xu M, Zhang G, Shi Y, Cai Q, Li H, Zhao Yet al., 2023, Towards Practical Application of Li-S Battery with High Sulfur Loading and Lean Electrolyte: Will Carbon-Based Hosts Win This Race?, Nanomicro Lett, Vol: 15

As the need for high-energy-density batteries continues to grow, lithium-sulfur (Li-S) batteries have become a highly promising next-generation energy solution due to their low cost and exceptional energy density compared to commercially available Li-ion batteries. Research into carbon-based sulfur hosts for Li-S batteries has been ongoing for over two decades, leading to a significant number of publications and patents. However, the commercialization of Li-S batteries has yet to be realized. This can be attributed, in part, to the instability of the Li metal anode. However, even when considering just the cathode side, there is still no consensus on whether carbon-based hosts will prove to be the best sulfur hosts for the industrialization of Li-S batteries. Recently, there has been controversy surrounding the use of carbon-based materials as the ideal sulfur hosts for practical applications of Li-S batteries under high sulfur loading and lean electrolyte conditions. To address this question, it is important to review the results of research into carbon-based hosts, assess their strengths and weaknesses, and provide a clear perspective. This review systematically evaluates the merits and mechanisms of various strategies for developing carbon-based host materials for high sulfur loading and lean electrolyte conditions. The review covers structural design and functional optimization strategies in detail, providing a comprehensive understanding of the development of sulfur hosts. The review also describes the use of efficient machine learning methods for investigating Li-S batteries. Finally, the outlook section lists and discusses current trends, challenges, and uncertainties surrounding carbon-based hosts, and concludes by presenting our standpoint and perspective on the subject.

Journal article

Yao X, Lu X, Zhou Y, Samoril T, Bi J, Masteghin MG, Zhang H, Askew L, Kim J, Xiong F, Wang J, Cox DC, Sui T, Gilmore I, Silva SRP, Mai L, Hinds G, Shearing PR, Park J, Zhao Yet al., 2023, Rectifying interphases for preventing Li dendrite propagation in solid-state electrolytes, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 16, Pages: 2167-2176, ISSN: 1754-5692

Journal article

Wang J, Yang K, Sun S, Ma Q, Yi G, Chen X, Wang Z, Yan W, Liu X, Cai Q, Zhao Yet al., 2023, Advances in thermal-related analysis techniques for solid-state lithium batteries, INFOMAT, Vol: 5

Journal article

Fu Y, Yang K, Xue S, Li W, Chen S, Song Y, Song Z, Zhao W, Zhao Y, Pan F, Yang L, Sun Xet al., 2023, Surface Defects Reinforced Polymer-Ceramic Interfacial Anchoring for High-Rate Flexible Solid-State Batteries, ADVANCED FUNCTIONAL MATERIALS, Vol: 33, ISSN: 1616-301X

Journal article

Fan Y, Olsson E, Liang G, Wang Z, D'Angelo AM, Johannessen B, Thomsen L, Cowie B, Li J, Zhang F, Zhao Y, Pang WK, Cai Q, Guo Zet al., 2022, Stabilizing Cobalt-free Li-rich Layered Oxide Cathodes through Oxygen Lattice Regulation by Two-phase Ru Doping, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, ISSN: 1433-7851

Journal article

Zhang G, Xiong T, Xia L, Yao X, Zhao Y, Zheng L, Chen H, Zhao Y, Yan Met al., 2022, Operando Observation of Coupled Discontinuous-Continuous Transitions in Ion-Stabilized Intercalation Cathodes, BATTERIES-BASEL, Vol: 8

Journal article

Elnathan R, Barbato MG, Guo X, Mariano A, Wang Z, Santoro F, Shi P, Voelcker NH, Xie X, Young JL, Zhao Y, Zhao W, Chiappini Cet al., 2022, Biointerface design for vertical nanoprobes, NATURE REVIEWS MATERIALS, Vol: 7, Pages: 953-973, ISSN: 2058-8437

Journal article

Wen L, Li G, Huang T, Geng W, Pei H, Yang J, Zhu M, Zhang P, Hou R, Tian G, Su W, Chen J, Zhang D, Zhu P, Zhang W, Zhang X, Zhang N, Zhao Y, Cao X, Peng G, Ren X, Jiang N, Tian C, Chen Z-Jet al., 2022, Single-cell technologies: From research to application, INNOVATION, Vol: 3, ISSN: 2666-6758

Journal article

Sun S, Wang J, Chen X, Ma Q, Wang Y, Yang K, Yao X, Yang Z, Liu J, Xu H, Cai Q, Zhao Y, Yan Wet al., 2022, Thermally Stable and Dendrite-Resistant Separators toward Highly Robust Lithium Metal Batteries, ADVANCED ENERGY MATERIALS, Vol: 12, ISSN: 1614-6832

Journal article

Bi J, Zhang J, Giannakou P, Wickramanayake T, Yao X, Wang M, Liu X, Shkunov M, Zhang W, Zhao Yet al., 2022, A Highly integrated flexible photo-rechargeable system based on stable ultrahigh-rate quasi-solid-state zinc-ion micro-batteries and perovskite solar cells, ENERGY STORAGE MATERIALS, Vol: 51, Pages: 239-248, ISSN: 2405-8297

Journal article

Xiang Y, Cao Y, Yang W, Hu R, Wood S, Li B, Hu Q, Zhang F, He J, Yavari M, Zhao J, Zhao Y, Song J, Qu J, Zhu R, Russell TP, Silva SRP, Zhang Wet al., 2022, Laser-Induced Recoverable Fluorescence Quenching of Perovskite Films at a Microscopic Grain Scale, ENERGY & ENVIRONMENTAL MATERIALS, Vol: 5, Pages: 1189-1199

Journal article

Yan M, Wang P, Pan X, Wei Q, Han C, Liu JZ, Zhao Y, Zhao K, Dunn B, Yang J, Mai Let al., 2022, Quadrupling the stored charge by extending the accessible density of states, CHEM, Vol: 8, Pages: 2410-2418, ISSN: 2451-9294

Journal article

Liu X, Zhang L, Yu H, Wang J, Li J, Yang K, Zhao Y, Wang H, Wu B, Brandon N, Yang Set al., 2022, Bridging multiscale characterization technologies and digital modeling to evaluate lithium battery full lifecycle, Advanced Energy Materials, Vol: 12, ISSN: 1614-6832

The safety, durability and power density of lithium-ion batteries (LIBs) are currently inadequate to satisfy the continuously growing demand of the emerging battery markets. Rapid progress has been made from material engineering to system design, combining experimental results and simulations to enhance LIB performance. Limited by spatial and temporal resolution, state-of-the-art advanced characterization techniques fail to fully reveal the complex multi-scale degradation mechanism in LIBs. Strengthening interaction and iteration between characterization and modeling improves the understanding of reaction mechanisms as well as design and management of LIBs. Herein, a seed cyber hierarchy and interactional network framework is demonstrated to evaluate the overall lifecycle of LIBs. The typical examples of bridging the characterization techniques and modeling are discussed. The critical parameters extracted from multi-scale characterization can serve as digital inputs for modeling. Furthermore, advanced computational techniques including cloud computing, big data, machine learning, and artificial intelligence can also promote the comprehensive understanding and precise control of the whole battery lifecycle. Digital twins techniques will be introduced enabling the real-time monitoring and control of LIBs, autonomous computer-assisted characterizations and intelligent manufacturing. It is anticipated that this work will provide a roadmap for further intensive research on developing high-performance LIBs and intelligent battery management.

Journal article

Zhang J, Zhang L, Zhao Y, Meng J, Wen B, Muttaqi KM, Islam MR, Cai Q, Zhang Set al., 2022, High-Performance Rechargeable Aluminum-Ion Batteries Enabled by Composite FeF<sub>3</sub> @ Expanded Graphite Cathode and Carbon Nanotube-Modified Separator, ADVANCED ENERGY MATERIALS, Vol: 12, ISSN: 1614-6832

Journal article

Guo B, Fu Y, Wang J, Gong Y, Zhao Y, Yang K, Zhou S, Liu L, Yang S, Liu X, Pan Fet al., 2022, Strategies and characterization methods for achieving high performance PEO-based solid-state lithium-ion batteries, CHEMICAL COMMUNICATIONS, Vol: 58, Pages: 8182-8193, ISSN: 1359-7345

Journal article

Xiao Z, Wang X, Meng J, Wang H, Zhao Y, Mai Let al., 2022, Advances and perspectives on one- dimensional nanostructure electrode materials for potassium-ion batteries, MATERIALS TODAY, Vol: 56, Pages: 114-134, ISSN: 1369-7021

Journal article

Yao X, Olsson E, Wang M, Wang J, Cai Q, Peng N, Webb R, Zhao Yet al., 2022, Xenon Ion Implantation Induced Surface Compressive Stress for Preventing Dendrite Penetration in Solid-State Electrolytes, SMALL, Vol: 18, ISSN: 1613-6810

Journal article

Cox-Pridmore DM, Castro FA, Silva SRP, Camelliti P, Zhao Yet al., 2022, Emerging Bioelectronic Strategies for Cardiovascular Tissue Engineering and Implantation, SMALL, Vol: 18, ISSN: 1613-6810

Journal article

Cox-Pridmore D, Zhao Y, Castro F, Camelliti P, Silva Ret al., 2022, EMBEDDING FLEXIBLE BIOELECTRONICS WITHIN 3D SCAFFOLDS FOR CELLULAR INTERROGATION AND CARDIAC TISSUE ENGINEERING., 6th World Congress of the Tissue-Engineering-and-Regenerative-Medicine-International-Society (TERMIS), Publisher: MARY ANN LIEBERT, INC, Pages: S478-S479, ISSN: 1937-3341

Conference paper

Yao X, Samoril T, Dluhos J, Watts JF, Du Z, Son B, Silva SRP, Sui T, Zhao Yet al., 2022, Degradation Diagnostics from the Subsurface of Lithium-Ion Battery Electrodes, ENERGY & ENVIRONMENTAL MATERIALS, Vol: 5, Pages: 662-669

Journal article

Liu S, Zhang R, Mao J, Zhao Y, Cai Q, Guo Zet al., 2022, From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries, SCIENCE ADVANCES, Vol: 8, ISSN: 2375-2548

Journal article

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