Search Results - "Zhao, Kejie"
-
1
A mechanical metamaterial with reprogrammable logical functions
Published in Nature communications (13-12-2021)“…Embedding mechanical logic into soft robotics, microelectromechanical systems (MEMS), and robotic materials can greatly improve their functional capacity…”
Get full text
Journal Article -
2
Electrochemomechanical degradation of high-capacity battery electrode materials
Published in Progress in materials science (01-08-2017)“…Enormous efforts have been undertaken to develop rechargeable batteries with new electrode materials that not only have superior energy and power densities,…”
Get full text
Journal Article -
3
Machine-learning-revealed statistics of the particle-carbon/binder detachment in lithium-ion battery cathodes
Published in Nature communications (08-05-2020)“…The microstructure of a composite electrode determines how individual battery particles are charged and discharged in a lithium-ion battery. It is a frontier…”
Get full text
Journal Article -
4
Charge distribution guided by grain crystallographic orientations in polycrystalline battery materials
Published in Nature communications (08-01-2020)“…Architecting grain crystallographic orientation can modulate charge distribution and chemomechanical properties for enhancing the performance of…”
Get full text
Journal Article -
5
Mutual modulation between surface chemistry and bulk microstructure within secondary particles of nickel-rich layered oxides
Published in Nature communications (07-09-2020)“…Surface lattice reconstruction is commonly observed in nickel-rich layered oxide battery cathode materials, causing unsatisfactory high-voltage cycling…”
Get full text
Journal Article -
6
Mechanical breathing in organic electrochromics
Published in Nature communications (10-01-2020)“…The repetitive size change of the electrode over cycles, termed as mechanical breathing, is a crucial issue limiting the quality and lifetime of organic…”
Get full text
Journal Article -
7
Dynamics of particle network in composite battery cathodes
Published in Science (American Association for the Advancement of Science) (29-04-2022)“…Improving composite battery electrodes requires a delicate control of active materials and electrode formulation. The electrochemically active particles…”
Get full text
Journal Article -
8
Lithiation of SiO2 in Li-Ion Batteries: In Situ Transmission Electron Microscopy Experiments and Theoretical Studies
Published in Nano letters (10-12-2014)“…Surface passivation has become a routine strategy of design to mitigate the chemomechanical degradation of high-capacity electrodes by regulating the…”
Get full text
Journal Article -
9
Lithium-Assisted Plastic Deformation of Silicon Electrodes in Lithium-Ion Batteries: A First-Principles Theoretical Study
Published in Nano letters (13-07-2011)“…Silicon can host a large amount of lithium, making it a promising electrode for high-capacity lithium-ion batteries. Recent experiments indicate that silicon…”
Get full text
Journal Article -
10
Kinetics of Initial Lithiation of Crystalline Silicon Electrodes of Lithium-Ion Batteries
Published in Nano letters (12-09-2012)“…Electrochemical experiments were conducted on {100}, {110}, and {111} silicon wafers to characterize the kinetics of the initial lithiation of crystalline Si…”
Get full text
Journal Article -
11
High‐Voltage Charging‐Induced Strain, Heterogeneity, and Micro‐Cracks in Secondary Particles of a Nickel‐Rich Layered Cathode Material
Published in Advanced functional materials (02-05-2019)“…Nickel‐rich layered materials LiNi1‐x‐yMnxCoyO2 are promising candidates for high‐energy‐density lithium‐ion battery cathodes. Unfortunately, they suffer from…”
Get full text
Journal Article -
12
Electrochemically driven mechanical energy harvesting
Published in Nature communications (06-01-2016)“…Efficient mechanical energy harvesters enable various wearable devices and auxiliary energy supply. Here we report a novel class of mechanical energy…”
Get full text
Journal Article -
13
Free-standing ultrathin lithium metal–graphene oxide host foils with controllable thickness for lithium batteries
Published in Nature energy (01-08-2021)“…Thin (≤20 μm) and free-standing Li metal foils would enable precise prelithiation of anode materials and high-energy-density Li batteries. Existing Li metal…”
Get full text
Journal Article -
14
Diffusion of Lithium in Bulk Amorphous Silicon: A Theoretical Study
Published in Journal of physical chemistry. C (25-10-2012)“…The rate performance of lithium-ion secondary batteries depends critically on the kinetic transport of Li within the anode material. Here we use…”
Get full text
Journal Article -
15
Chemomechanical interplay of layered cathode materials undergoing fast charging in lithium batteries
Published in Nano energy (01-11-2018)“…Morphological defects contribute to chronic and acute failures of batteries. The development of these morphological defects entails the multiscale…”
Get full text
Journal Article -
16
A comparison of AA2024 and AA7150 subjected to ultrasonic shot peening: Microstructure, surface segregation and corrosion
Published in Surface & coatings technology (15-03-2018)“…The influence of ultrasonic shot peening (USSP) on microstructure, surface segregation, localized and electrochemical corrosion of AA2024 was investigated…”
Get full text
Journal Article -
17
An electrochemically stable homogeneous glassy electrolyte formed at room temperature for all-solid-state sodium batteries
Published in Nature communications (23-05-2022)“…All-solid-state sodium batteries (ASSSBs) are promising candidates for grid-scale energy storage. However, there are no commercialized ASSSBs yet, in part due…”
Get full text
Journal Article -
18
Thermal-healing of lattice defects for high-energy single-crystalline battery cathodes
Published in Nature communications (04-02-2022)“…Single-crystalline nickel-rich cathodes are a rising candidate with great potential for high-energy lithium-ion batteries due to their superior structural and…”
Get full text
Journal Article -
19
Active learning through flipped classroom in mechanical engineering: improving students’ perception of learning and performance
Published in International journal of STEM education (22-07-2021)“…Background To address some challenges that the large lecture-focused courses have faced in higher education, the flipped classroom model was implemented in…”
Get full text
Journal Article -
20
Strain rate sensitivity of the ultrastrong gradient nanocrystalline 316L stainless steel and its rate-dependent modeling at nanoscale
Published in International journal of plasticity (01-06-2020)“…We fabricate ultrastrong gradient nanocrystalline (NC) 316L stainless steel with an extremely fined grain size of 5 nm using the Ultrasonic Strain Engineering…”
Get full text
Journal Article