Alignment does matter: Design thick electrodes to improve the comprehensive lithium storage performance

Nie, Bo; Li, Mingxin; Yao, Tiankai; Yang, Haoqing; Duan, Linrui; Zhang, Juchen; Xin, Guoqing; Liu, Tengxiao; Sun, Hongtao; Lian, Jie

doi:10.1016/j.carbon.2023.02.015

Cited by 9 publications

(5 citation statements)

References 42 publications

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“…The voltage disparity between the cathode and anode propels electrons through the connected circuit, thereby powering electric devices. [36][37][38] The structural battery, in its role as the structural component of the device, necessitates substantial mechanical strength and resilience to forestall severe deformation or damage. Given that most active materials in the battery electrodes are ceramics, the mechanical attributes of structural batteries are achieved by ceramicmatrix composite reinforcement or toughening, such as fiber strengthening, ductile-phase toughening, and transformation toughening.…”

Section: Multifunctionalities Of Structural Batteriesmentioning

confidence: 99%

“…A liquid electrolyte‐incorporated separator or solid‐state electrolyte separates the cathode and anode, exclusively allowing the passage of lithium ions. The voltage disparity between the cathode and anode propels electrons through the connected circuit, thereby powering electric devices 36–38 . The structural battery, in its role as the structural component of the device, necessitates substantial mechanical strength and resilience to forestall severe deformation or damage.…”

Section: Multifunctionalities Of Structural Batteriesmentioning

confidence: 99%

“…This modeling approach enables the prediction of flexural performance for different configurations of structural batteries. 19,37 Moreover, the mechanical properties of structural batteries can be evaluated using puncture tests, which subject the cells to harsh risk assessments involving tensile and compressive stresses (Figure 3D). The resulting load-displacement curves and fracture images distinguish the mechanical properties of different structural designs under severe deformation.…”

Section: Characterizations Of Multifunctional Composites For Structur...mentioning

confidence: 99%

“…Finite element methods can be utilized to map strain and stress distributions within the composite or assembled cells. This modeling approach enables the prediction of flexural performance for different configurations of structural batteries 19,37 . Moreover, the mechanical properties of structural batteries can be evaluated using puncture tests, which subject the cells to harsh risk assessments involving tensile and compressive stresses (Figure 3D).…”

Section: Characterizations Of Multifunctional Composites For Structur...mentioning

confidence: 99%

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Multifunctional composite designs for structural energy storage

Nie,

Lim,

Liu

et al. 2023

Battery Energy

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Structural batteries have emerged as a promising alternative to address the limitations inherent in conventional battery technologies. They offer the potential to integrate energy storage functionalities into stationary constructions as well as mobile vehicles/planes. The development of multifunctional composites presents an effective avenue to realize the structural plus concept, thereby mitigating inert weight while enhancing energy storage performance beyond the material level, extending to cell‐ and system‐level attributes. Specifically, multifunctional composites within structural batteries can serve the dual roles of functional composite electrodes for charge storage and structural composites for mechanical load‐bearing. However, the implementation of these multifunctional composites faces a notable challenge in simultaneously realizing mechanical properties and energy storage performance due to the unstable interfaces. In this review, we first introduce recent research developments pertaining to electrodes, electrolytes, separators, and interface engineering, all tailored to structure plus composites for structure batteries. Then, we summarize the mechanical and electrochemical characterizations in this context. We also discuss the reinforced multifunctional composites for different structures and battery configurations and conclude with a perspective on future opportunities. The knowledge synthesized in this review contributes to the realization of efficient and durable energy storage systems seamlessly integrated into structural components.

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Section: Multifunctionalities Of Structural Batteriesmentioning

confidence: 99%

Section: Multifunctionalities Of Structural Batteriesmentioning

confidence: 99%

Section: Characterizations Of Multifunctional Composites For Structur...mentioning

confidence: 99%

Section: Characterizations Of Multifunctional Composites For Structur...mentioning

confidence: 99%

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Multifunctional composite designs for structural energy storage

Nie,

Lim,

Liu

et al. 2023

Battery Energy

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“…Over the past decade, intensive research on two-dimensional (2D) graphene has led to significant advancements. , This single atomic layer of carbon with covalent bonding exhibits exceptional electronic, thermal, mechanical, and optical characteristics within its 2D planes. Consequently, graphene has applications in various fields, such as high-performance composites, electronics, energy conversion, and storage. − However, substantial scientific challenges exist in effectively translating the unique nanoscale features of 2D graphene into practical macroscopic forms. Graphene oxide (GO), the oxidized form of graphene, has emerged as a promising precursor for bottom-up assembly into high-performance macroscopic structures.…”

Section: Introductionmentioning

confidence: 99%

Liquid Crystal Phase-Regulated Hierarchical Structures for High-Performance Silicon-Graphene Anodes

Nie,

Sanchez,

Alcoutlabi

et al. 2023

ACS Appl. Nano Mater.

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Hydrophilic graphene oxide (GO) has emerged as a versatile two-dimensional nanoscale building block capable of being assembled into diverse macroscopic forms to create highperformance graphene-based structures after reduction. For example, solution GO-derived graphene has been extensively studied as a matrix for hosting active electrode materials in highperformance battery electrodes. Increasing the GO concentration allows it to transition from an isotropic colloidal solution to a nematic liquid crystal (LC) phase, thereby enhancing the material properties through the LC-regulated alignment of the GO sheet building blocks. In this study, we fabricated a GO LC-regulated hierarchically macroscopic structure with long-range ordering, resembling an artificial "parent crystal lattice″. Within this structure, silicon (Si) nanoparticles (NPs) were incorporated as the "secondary phase atoms″. This unique architecture facilitates expedited charge transport pathways and mechanically robust backbones, effectively alleviating large volume changes during charge− discharge processes. The resulting Si-graphene electrode, with a mass loading of 4 mg cm −2 , achieved a maximum capacity of 8 mAh cm −2 at 0.21 mA cm −2 and maintained a practical capacity of 4.2 mAh cm −2 at 1.68 mA cm −2 . Moreover, the Si-graphene anode demonstrated excellent cycling stability with a high Coulombic efficiency of 99.5% and nearly 100% capacity retention over 200 cycles.

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Oriented Structures for High Safety, Rate Capability, and Energy Density Lithium Metal Batteries

Wang,

Tieu,

et al. 2024

Advanced Science

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Lithium metal batteries (LMBs) have emerged in recent years as highly promising candidates for high‐density energy storage systems. Despite their immense potential, mutual constraints arise when optimizing energy density, rate capability, and operational safety, which greatly hinder the commercialization of LMBs. The utilization of oriented structures in LMBs appears as a promising strategy to address three key performance barriers: 1) low efficiency of active material utilization at high surface loading, 2) easy formation of Li dendrites and damage to interfaces under high‐rate cycling, and 3) low ionic conductivity of solid‐state electrolytes in high safety LMBs. This review aims to holistically introduce the concept of oriented structures, provide criteria for quantifying the degree of orientation, and elucidate their systematic effects on the properties of materials and devices. Furthermore, a detailed categorization of oriented structures is proposed to offer more precise guidance for the design of LMBs. This review also provides a comprehensive summary of preparation techniques for oriented structures and delves into the mechanisms by which these can enhance the energy density, rate capability, and safety of LMBs. Finally, potential applications of oriented structures in LMBs and the crucial challenges that need to be addressed in this field are explored.

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Alignment does matter: Design thick electrodes to improve the comprehensive lithium storage performance

Cited by 9 publications

References 42 publications

Multifunctional composite designs for structural energy storage

Multifunctional composite designs for structural energy storage

Liquid Crystal Phase-Regulated Hierarchical Structures for High-Performance Silicon-Graphene Anodes

Oriented Structures for High Safety, Rate Capability, and Energy Density Lithium Metal Batteries

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