High rate lithium slurry flow batteries enabled by an ionic exchange Nafion composite membrane incorporated with LLZTO fillers

Wang, Ru‐Ji; Yang, Liang; Li, Jin; Pan, Shanshan; Zhang, Fengjie; Zhang, Haitao; Zhang, Suojiang

doi:10.1016/j.nanoen.2023.108174

Cited by 12 publications

(9 citation statements)

References 53 publications

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“…To explore the interaction of Li ions and polymers, we conducted the Li‐ion dissociation energy for the polymers (Figure 3f–g). [ 31 ] The dissociation energy of SICLP‐Li is 1.48 eV, while the SICNP‐Li exhibited a reduced value of −1.44 eV after incorporating P(PEGDA) chains. This phenomenon demonstrates that the P(PEGDA) network matrix plays an important role on the interaction with SICNP‐Li and promotes the dissociation of SICNP‐Li to release more free Li ions, which is probably responsible for the enhanced ionic conductivity.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous High Ionic Conductivity and Lithium‐Ion Transference Number in Single‐Ion Conductor Network Polymer Enabling Fast‐Charging Solid‐State Lithium Battery

Wang

Sun

Zou

et al. 2023

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Developing solid‐state electrolyte with sufficient ionic conduction and flexible‐intimate interface is vital to advance fast‐charging solid‐state lithium batteries. Solid polymer electrolyte yields the promise of interfacial compatibility, yet its critical bottleneck is how to simultaneously achieve high ionic conductivity and lithium‐ion transference number. Herein, single‐ion conducting network polymer electrolyte (SICNP) enabling fast charging is proposed to positively realize fast lithium‐ion locomotion with both high ionic conductivity of 1.1 × 10−3 S cm−1 and lithium‐ion transference number of 0.92 at room temperature. Experimental characterization and theoretical simulations demonstrate that the construction of polymer network structure for single‐ion conductor not only facilitates fast hopping of lithium ions for boosting ionic kinetics, but also enables a high dissociation level of the negative charge for lithium‐ion transference number close to unity. As a result, the solid‐state lithium batteries constructed by coupling SICNP with lithium anodes and various cathodes (e.g., LiFePO4, sulfur, and LiCoO2) display impressive high‐rate cycling performance (e.g., 95% capacity retention at 5 C for 1000 cycles in LiFePO4|SICNP|lithium cell) and fast‐charging capability (e.g., being charged within 6 min and discharged over than 180 min in LiCoO2|SICNP|lithium cell). Our study provides a prospective direction for solid‐state electrolyte that meets the lithium‐ion dynamics for practical fast‐charging solid‐state lithium batteries.

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Section: Resultsmentioning

confidence: 99%

Simultaneous High Ionic Conductivity and Lithium‐Ion Transference Number in Single‐Ion Conductor Network Polymer Enabling Fast‐Charging Solid‐State Lithium Battery

Wang

Sun

Zou

et al. 2023

Small

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“…[161] Some inorganic solid electrolyte powders (e.g., Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 , LLZTO) are also used as ionic active fillers to further improve the ionic conductivity and mechanical properties of SPEs. [162,163] Shen et al prepared a SPE composed of poly(vinylene fluoride) (PVDF) matrix and LLZTO fillers through a simple solution-casting method (denoted as the PVDF/LLZTO) (Figure 8h). [157] FTIR analysis confirmed that the addition of LLZTO likely caused the partial dehydrofluorination of PVDF, giving rise to a strong adhesion between PVDF and LLZTO.…”

Section: Electrolyte Modificationmentioning

confidence: 99%

Challenges and Advances in Rechargeable Batteries for Extreme‐Condition Applications

Wu,

Wang

et al. 2023

Advanced Materials

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Rechargeable batteries are widely used as power sources for portable electronics, electric vehicles and smart grids. Their practical performances are, however, largely undermined under extreme conditions, such as in high‐altitude drones, ocean exploration and polar expedition. These extreme environmental conditions not only bring new challenges for batteries but also incur unique battery failure mechanisms. To fill in the gap, it is of great importance to understand the battery failure mechanisms under different extreme conditions and figure out the key parameters that limit battery performances. In this review, we start by investigating the key challenges from the viewpoints of ionic/charge transfer, material/interface evolution and electrolyte degradation under different extreme conditions. It is then followed by different engineering approaches through electrode materials design, electrolyte modification and battery component optimization to enhance practical battery performances. Finally, a short perspective is provided about the future development of rechargeable batteries under extreme conditions.This article is protected by copyright. All rights reserved

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“…19 The addition of fillers can suppress the enhancement of the mobility of lithium ions by generating more amorphous regions. 20,21 Additionally, fillers can modify the redox state of polymer electrolytes, increase their chemical stability, and minimize the occurrence of interfacial side reactions. window as high as 5.5 V at 60 °C, with excellent cycling performance.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have demonstrated that the introduction of different fillers into polymer electrolytes produces different effects . The addition of fillers can suppress the enhancement of the mobility of lithium ions by generating more amorphous regions. , Additionally, fillers can modify the redox state of polymer electrolytes, increase their chemical stability, and minimize the occurrence of interfacial side reactions. − Yi Cui and his team from Stanford University carried out the in situ growth of SiO 2 nanorods on PEO. Experimental results indicated that the solid polymer electrolytes (SPEs) achieved a conductivity of 1.2 × 10 –3 S·cm –1 and an electrochemical window as high as 5.5 V at 60 °C, with excellent cycling performance.…”

Section: Introductionmentioning

confidence: 99%

Spatial Distance Effect of Negative Ion–Porous Organic Polymers on the Electrochemical Properties of Composite Solid Electrolytes

Wang,

Liu,

Tai

et al. 2024

ACS Appl. Polym. Mater.

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Among composite solid electrolytes, the addition of fillers could restrain the crystallization of the molecular chain of poly(ethylene oxide) (PEO). However, the impact of the spatial distance on the electrochemical properties remains unstudied. This paper uses linear aldehydes with carbon chain lengths of 1 and 7 to synthesize polyaminal-formaldehyde (PAN-FDE) and polyaminal-heptaldehyde (PAN-HDE) with melamine as the filler, which can reduce the crystallinity of the matrix and improve the ionic conductivity. Besides, the ionic conductivity of the PAN-FDE electrolyte membrane can reach 8.433 × 10 −5 S•cm −1 at room temperature by adding 1% PAN-FDE with PEO mass, which increases by 2 orders of magnitude for a poly(ethylene oxide)-lithium trifluoromethanesulfonimide (PEO-LiTFSI) electrolyte membrane. In addition, the electrochemical window of PAN-FDE electrolytes is 0.57 V higher than that of PEO-LiTFSI electrolytes, which can be attributed to the formation of hydrogen bonds between numerous N−H groups in PAN-FDE and ether−oxygen in PEO. In symmetric cells, Li/PAN-FDE/Li cells show a lower initial overpotential of 62 mV and can cycle steadily for 1600 h without a short-circuit, while PEO-LiTFSI cells show a high initial overpotential of 457 mV, and short-circuit occurred at 180 h. In this paper, we contribute another way to optimize the electrochemical properties of composite solid electrolytes by changing the spatial distance.

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High rate lithium slurry flow batteries enabled by an ionic exchange Nafion composite membrane incorporated with LLZTO fillers

Cited by 12 publications

References 53 publications

Simultaneous High Ionic Conductivity and Lithium‐Ion Transference Number in Single‐Ion Conductor Network Polymer Enabling Fast‐Charging Solid‐State Lithium Battery

Simultaneous High Ionic Conductivity and Lithium‐Ion Transference Number in Single‐Ion Conductor Network Polymer Enabling Fast‐Charging Solid‐State Lithium Battery

Challenges and Advances in Rechargeable Batteries for Extreme‐Condition Applications

Spatial Distance Effect of Negative Ion–Porous Organic Polymers on the Electrochemical Properties of Composite Solid Electrolytes

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