Aramid nanofiber reinforced cellulose paper for high-safety lithium-ion batteries

Pan, Jiao-Long; Zhang, Ze; Zhou, Meiling; Wei, Junchao; He, Weidong; Yang, Zhenyu

doi:10.1007/s10570-021-04173-2

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…Examples of such separators include poly(phthalazinone ether sulfone ketone) (PPESK) 71 and aramid nanofiber (ANF). 62,72 In one previous research study, the ANF separators were demonstrated with high modulus and self-extinguishing properties, as depicted in Figure 2F. 62 These separators are produced through the dissolution of Kevlar fibers and subsequent vacuum-assisted self-assembly.…”

Section: Mechanically Robust Separatorsmentioning

confidence: 93%

“…Polymer‐based separators with strong secondary bonds between the polymer chains have been extensively explored and tailored for application in structural batteries. Examples of such separators include poly(phthalazinone ether sulfone ketone) (PPESK) 71 and aramid nanofiber (ANF) 62,72 . In one previous research study, the ANF separators were demonstrated with high modulus and self‐extinguishing properties, as depicted in Figure 2F 62 .…”

Section: Multifunctionalities Of Structural Batteriesmentioning

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: Mechanically Robust Separatorsmentioning

confidence: 93%

Section: Multifunctionalities Of Structural Batteriesmentioning

confidence: 99%

Multifunctional composite designs for structural energy storage

Nie,

Lim,

Liu

et al. 2023

Battery Energy

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“…Cellulose, and its derivative materials, have been considered for several sustainable energy systems as a cost-effective, renewable, and naturally abundant biopolymer . For instance, carboxymethyl cellulose (CMC) has already been widely used as a binder for electrode laminates. , Recently, cellulose-based separators (CBS) have attracted significant attention among battery researchers due to their substantial benefits over the commonly used, commercial separator in a battery. − The typical commercial separators, herein termed “conventional” separators, are primarily based on individual or composite blends of polymer plastics, such as polypropylene (PP), polyethylene (PE), or other similar plastics. Compared to conventional separators, the composite, nonwoven CBS, with cellulose as their main constituent, can be engineered to have improved thermal stability, increasing cell safety. − , Furthermore, the fibrillation and calendaring process of the paper-like, nonwoven CBS allows for tunable pore size, facilitating ionic diffusion and electrolyte uptake. − ,,, In addition, some research has demonstrated promising outcomes from CBS in LIBs, indicating its potential to enhance capacity retention. − ,− , This improved capacity retention has been predominantly attributed to improved electrolyte uptake, uniform pore size distribution, high porosity, and/or low membrane resistance of the CBS.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to conventional separators, the composite, nonwoven CBS, with cellulose as their main constituent, can be engineered to have improved thermal stability, increasing cell safety. [28][29][30][31][32][33][34]41 Furthermore, the fibrillation and calendaring process of the paper-like, nonwoven CBS allows for tunable pore size, facilitating ionic diffusion and electrolyte uptake. [30][31][32]37,38,41 In addition, some research has demonstrated promising outcomes from CBS in LIBs, indicating its potential to enhance capacity retention.…”

Section: Introductionmentioning

confidence: 99%

“…[30][31][32]37,38,41 In addition, some research has demonstrated promising outcomes from CBS in LIBs, indicating its potential to enhance capacity retention. [30][31][32][34][35][36][37]41 This improved capacity retention has been predominantly attributed to improved electrolyte uptake, uniform pore size distribution, high porosity, and/or low membrane resistance of the CBS. However, the mechanism by which the nonwoven CBS can improve the cycle life of LIBs remains fairly unclear.…”

Section: Introductionmentioning

confidence: 99%

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H₂O/HF Scavenging Mechanism in Cellulose-Based Separators for Lithium-Ion Batteries with Enhanced Cycle Life

Pereira,

McRay,

Bopte

et al. 2024

ACS Appl. Mater. Interfaces

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Lithium-ion batteries (LIBs) are increasingly being integrated into the transportation industry due to their high energy density, durability, and low cost. With the growing demand for transportation and other emerging applications, there is a concurrent rise in concern over LIB material sourcing and recycling. This urges the development of LIBs with extended cycle lifespans. One mechanism of capacity fading in LIBs is the dissolution of transition metals into the electrolyte after the cathode is etched with hydrofluoric acid (HF). HF is readily generated by the hydrolysis of the LIB electrolyte salt, lithium hexafluorophosphate (LiPF 6 ), which makes minimizing moisture in the electrolyte a priority in manufacturing. In this study, a nonwoven, cellulose-based separator (CBS) is introduced as an alternative separator for battery technologies to scavenge residual water and HF from the electrolyte. The CBS is shown to be capable of scavenging varying amounts of water from the electrolyte based on different drying processes of the CBS, and a mechanism for this water scavenging is identified based on the materials present in the CBS. In addition, the chemical and electrochemical performance of the CBS in real battery conditions is investigated. Results suggest an effective H 2 O/HF scavenging capability in the CBS that allows LIB coin cells to have over 17% higher capacity retention than those with conventional separators. Furthermore, studies of the industrially manufactured, commercially relevant cylindrical and pouch cells show remarkable 761 and 103% improvements in the 60% capacity lifetime, respectively. The environmental friendliness, low cost, and easy application empowered by the cycle life improvements shown in this work make this nonwoven CBS a promising candidate for improving industry-level LIB performance.

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Cellulose Separators for Rechargeable Batteries with High Safety: Advantages, Strategies, and Perspectives

Chen,

Lin,

Yang

et al. 2024

Adv Funct Materials

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Most of the separators used in commercial rechargeable batteries are polypropylene and polyethylene, which have the characteristics of high mechanical strength and good chemical stability. Due to lower melting point, however, these separators may melt when the internal temperature of the cell rises. The direct contact of the positive and negative electrodes after the melting of separator will cause serious safety issues. Cellulose‐based separators have received increasing attention in rechargeable batteries because of advantages including high‐temperature resistance, high electrolyte affinity, renewability, and the ability to suppress the shuttle effect. Herein, the application of cellulose separators in rechargeable batteries is summarized in this review. An overview of the cellulose structure, elucidating both its advantages and the challenges as separators in rechargeable batteries is presented. The application of different types of cellulose as separators is also discussed. Furthermore, the failure mechanism of cellulose separators are explored in depth, which can provide guidance for designing safer and more reliable separators for rechargeable batteries. The modification strategies of cellulose separators are summarized in terms of the improved mechanical strength, heat resistance, good wettability, and other properties. Finally, promising perspectives are proposed for the future development of cellulose separators aimed at large‐scale applications.

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Aramid nanofiber reinforced cellulose paper for high-safety lithium-ion batteries

Cited by 11 publications

References 32 publications

Multifunctional composite designs for structural energy storage

Multifunctional composite designs for structural energy storage

H₂O/HF Scavenging Mechanism in Cellulose-Based Separators for Lithium-Ion Batteries with Enhanced Cycle Life

Cellulose Separators for Rechargeable Batteries with High Safety: Advantages, Strategies, and Perspectives

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Aramid nanofiber reinforced cellulose paper for high-safety lithium-ion batteries

Cited by 11 publications

References 32 publications

Multifunctional composite designs for structural energy storage

Multifunctional composite designs for structural energy storage

H2O/HF Scavenging Mechanism in Cellulose-Based Separators for Lithium-Ion Batteries with Enhanced Cycle Life

Cellulose Separators for Rechargeable Batteries with High Safety: Advantages, Strategies, and Perspectives

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H₂O/HF Scavenging Mechanism in Cellulose-Based Separators for Lithium-Ion Batteries with Enhanced Cycle Life