Human joint-inspired structural design for a bendable/foldable/stretchable/twistable battery: achieving multiple deformabilities

Chen, Ao; Guo, Xun; Yang, Shuo; Liang, Guojing; Li, Qing; Chen, Ze; Huang, Zhaodong; Yang, Qi; Han, Cuiping; Chen, Zhi

doi:10.1039/d1ee00480h

Cited by 61 publications

(56 citation statements)

References 47 publications

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“…[23] In addition, the ESW of electrolytes could also be expanded through the special design of electrode materials [24] or battery configuration. [25,26] However, WiS electrolytes are plagued by high costs or environment that are too acidic or alkaline, which has greatly deteriorated their practical application.…”

Section: Doi: 101002/adma202106180mentioning

confidence: 99%

Small‐Dipole‐Molecule‐Containing Electrolytes for High‐Voltage Aqueous Rechargeable Batteries

Huang

Wang

et al. 2021

Advanced Materials

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.202106180.High-voltage aqueous rechargeable batteries are promising competitors for next-generation energy storage systems with safety and high specific energy, but they are limited by the absence of low-cost aqueous electrolytes with a wide electrochemical stability window (ESW). The decomposition of aqueous electrolytes is mainly facilitated by the hydrogen bond network between water molecules and the water molecules in the solvation sheath. Here, three types of small dipole molecules (small molecules containing a dipole; glycerol (Gly), erythritol (Et), and acrylamide (AM)) are reported to develop aqueous electrolytes with high safety and wide ESW (over 2.5 V) for aqueous lithium-, sodium-, and zinc-ion batteries, respectively. The solvation-sheath structures are explored by ab initio molecular dynamics (MD) simulations, demonstrating that three types of dipole molecules deplete the water molecules in the solvation sheath of the charge carrier and break the hydrogen bond network between the water molecules, thus effectively expanding the ESW. A battery constructed from lithium titanate and lithium manganate in Gly-containing electrolyte exhibits an output voltage of 2.45 V and retains a specific capacity of 119.6 mAh g −1 after 400 cycles. This work provides another strategy for exploiting low-cost high-voltage electrolytes for aqueous energystorage systems.

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Section: Doi: 101002/adma202106180mentioning

confidence: 99%

Small‐Dipole‐Molecule‐Containing Electrolytes for High‐Voltage Aqueous Rechargeable Batteries

Huang

Wang

et al. 2021

Advanced Materials

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“…Experimental results show that the two models basically reach a stable accuracy value after 20000 iterations, and the detection accuracy of the verification set decreases slightly after about 60000 iterations. This is because the model overfits the training parameters of the training set, resulting in the decline of the recognition ability of the model parameters to the verification set [ 23 ].…”

Section: Results and Analysismentioning

confidence: 99%

Motion Recognition Based on Deep Learning and Human Joint Points

Jun-ping

2022

Computational Intelligence and Neuroscience

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In order to solve the problem that the traditional feature extraction methods rely on manual design, the research method is changed from the traditional method to the deep learning method based on convolutional neural networks. The experimental results show that the larger average DTW occurs near the 55th calculation, that is, about the 275th frame of the video. In the 55th calculation, the joint angle with the largest DTW distance is the right knee joint. A multiscene action similarity analysis algorithm based on human joint points has been realized. In the fitness scene, by analyzing the joint angle through cosine similarity, the time of fitness key posture in the action sequence can be recognized. In the sports scene, through the similarity analysis of joint angle sequences by the DTW algorithm, we can get the similarity between people’s actions in the sports video and the joint positions with large differences in some time intervals, and the real validity of the experiment is verified. The accuracy of motion recognition before and after the improvement is 95.2% and 97.1%, which is 0.19% higher than that before the improvement. The methods and results are widely used in the fields of sports recognition, movement specification, sports training, health management, and so on.

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“…Material and structural designs are employed to impart robust mechanical durability and conformity of stretchable batteries to nonplanar surfaces (Qian et al, 2019;Chen et al, 2021). Targets at realizing stretchable batteries would add mechanical difficulties, since the stretchability must be the zoomed-in area on a millimeter scale once subjected to different force forms and directions (Mackanic et al, 2020b;Yin et al, 2020).…”

Section: General Materials and Structural Designing Strategies For Stretchable Batteriesmentioning

confidence: 99%

Realizing Stretchable Aqueous Zn–Based Batteries by Material and Structural Designs

Hang

Jiang

2021

Front. Energy Res.

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The increasing demands on stretchable power supply for wearable electronics accelerate the development of stretchable batteries. Zn-based batteries are promising to be applied in wearable electronics due to their outstanding performance, intrinsic safety, low cost, and environmental friendliness. Recently, stretchable Zn-based batteries are designed to demonstrate the capability of delivering excellent electrochemical performance, meanwhile maintaining their mechanical stability. This review provides an overview of different strategies and designs to realize stretchability in different Zn-based battery components. The general strategies to realize stretchability are first introduced, followed by the specific designs on the cathode, anode, and electrolytes of Zn batteries. Moreover, current issues and possible strategies are also highlighted.

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Human joint-inspired structural design for a bendable/foldable/stretchable/twistable battery: achieving multiple deformabilities

Abstract: A bendable/foldable/stretchable/twistable lithium-ion battery inspired by the human joint can achieve multiple deformabilities.

Cited by 61 publications

References 47 publications

Small‐Dipole‐Molecule‐Containing Electrolytes for High‐Voltage Aqueous Rechargeable Batteries

Small‐Dipole‐Molecule‐Containing Electrolytes for High‐Voltage Aqueous Rechargeable Batteries

Motion Recognition Based on Deep Learning and Human Joint Points

Realizing Stretchable Aqueous Zn–Based Batteries by Material and Structural Designs

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