Novel branched sulfonated polyimide membrane with remarkable vanadium permeability resistance and proton selectivity for vanadium redox flow battery application

Li, Jinchao; Long, Jun; Huang, Wenheng; Xu, Wenjie; Li, Jun; Luo, Huan; Zhang, Yaping

doi:10.1016/j.ijhydene.2021.12.243

Cited by 28 publications

(6 citation statements)

References 46 publications

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“…B) Capacity retention of 0.5 m Z|T, commercial Li‐ion, and Zn–Ni batteries at 90% SOC (independent repeat samples, Figure S7, Supporting Information), error bars represent mean ± standard deviation, n = 3 except for Day 120 Li‐ion and Day 0 Zn–Ni batteries ( n = 2). C) OCV retention comparison of 0.5 m Z|T at 90% SOC to 102 previously reported BLAMs [ 26–127 ] (with/without membrane, static/flow) at various SOCs corresponding to Table S1, Supporting Information.…”

Section: Resultsmentioning

confidence: 98%

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br₂ Cross‐Over

Yang,

Lin,

et al. 2024

Advanced Science

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Batteries dissolving active materials in liquids possess safety and size advantages compared to solid‐based batteries, yet the intrinsic liquid properties lead to material cross‐over induced self‐discharge both during cycling and idle when the electrolytes are in contact, thus highly efficient and cost‐effective solutions to minimize cross‐over are in high demand. An ultra‐low self‐discharge aqueous|organic membraneless battery using dichloromethane (CH2Cl2) and tetrabutylammonium bromide (TBABr) added to a zinc bromide (ZnBr2) solution as the electrolyte is demonstrated. The polybromide is confined in the organic phase, and bromine (Br2) diffusion‐induced self‐discharge is minimized. At 90% state of charge (SOC), the membraneless ZnBr2|TBABr (Z|T) battery shows an open circuit voltage (OCV) drop of only 42 mV after 120 days, 152 times longer than the ZnBr2 battery, and superior to 102 previous reports from all types of liquid active material batteries. The 120‐day capacity retention of 95.5% is higher than commercial zinc‐nickel (Zn–Ni) batteries and vanadium redox flow batteries (VRFB, electrolytes stored separately) and close to lithium‐ion (Li‐ion) batteries. Z|T achieves >500 cycles (2670 h, 0.5 m electrolyte, 250 folds of membraneless ZnBr2 battery) with ≈100% Coulombic efficiency (CE). The simple and cost‐effective design of Z|T provides a conceptual inspiration to regulate material cross‐over in liquid‐based batteries to realize extended operation.

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Section: Resultsmentioning

confidence: 98%

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br₂ Cross‐Over

Yang,

Lin,

et al. 2024

Advanced Science

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“…(a) CE s, (b) EE s, (c) VE s, and (d) OCV curves of the CFSPI-PVA-15 and Nafion 212 membranes. (e) Comparison of the highest current density of PI-based and side chain grafted membranes reported in the last three years when EE attains 80%. ,,,,,,− …”

Section: Resultsmentioning

confidence: 99%

Construction and Investigation of Novel Cross-Linked Fluorine-Containing Sulfonated Polyimide Membranes for VFB Application

Long,

Huang,

et al. 2024

ACS Appl. Mater. Interfaces

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“…During the operation of the all-vanadium redox flow battery, the electrolyte was pumped into the porous electrodes through the flow field. The ion exchange membrane was located between the positive and negative electrodes, which can almost isolate all ions in the positive and negative electrolytes except for protons [22]. The generated electric current was collected and conducted by the outermost current collector plates [23].…”

Section: Modelmentioning

confidence: 99%

A Novel Biomimetic Lung-Shaped Flow Field for All-Vanadium Redox Flow Battery

Zhong,

Chu

2023

Sustainability

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The all-vanadium redox flow battery (VRFB) was regarded as one of the most potential technologies for large-scale energy storage due to its environmentally friendliness, safety and design flexibility. The flow field design and mass transfer performance in the porous electrodes were some of the main factors to influence the battery performance. A novel biomimetic lung-shaped flow field was designed, and the battery performance was compared with the serpentine flow field by numerical simulation analysis. The results showed that the charging voltage of the VRFB was reduced by about 5.34% when SOC = 0.9 compared with the serpentine flow field. On the other hand, the discharging voltage was promoted by about 9.77% when SOC = 0.1 compared with the serpentine flow field. The battery performance of the VRFB is obviously due to the enhancement of the mass transfer performance. The uniformity factor was promoted by 35.6% by the lung-shaped flow field when SOC = 0.1, which can reduce the polarization loss. The average concentration of the active ions was increased by about 18% by the lung-shaped biomimetic flow field, which was of significance to the electrochemical reaction. The design of the lung-shaped flow field can contribute to the application of the VRFB.

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Novel branched sulfonated polyimide membrane with remarkable vanadium permeability resistance and proton selectivity for vanadium redox flow battery application

Cited by 28 publications

References 46 publications

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br₂ Cross‐Over

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br₂ Cross‐Over

Construction and Investigation of Novel Cross-Linked Fluorine-Containing Sulfonated Polyimide Membranes for VFB Application

A Novel Biomimetic Lung-Shaped Flow Field for All-Vanadium Redox Flow Battery

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Novel branched sulfonated polyimide membrane with remarkable vanadium permeability resistance and proton selectivity for vanadium redox flow battery application

Cited by 28 publications

References 46 publications

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br2 Cross‐Over

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br2 Cross‐Over

Construction and Investigation of Novel Cross-Linked Fluorine-Containing Sulfonated Polyimide Membranes for VFB Application

A Novel Biomimetic Lung-Shaped Flow Field for All-Vanadium Redox Flow Battery

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Product

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An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br₂ Cross‐Over

An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br₂ Cross‐Over