Improving the performance of primary aluminum-air batteries through suppressing water activity by hydrogen bond-rich glycerol solvent additive

Thi Huong Pham; Woo Hyuk Lee; Ji Hae Byun; Jung Gu Kim

doi:10.1016/j.ensm.2022.12.012

Improving the performance of primary aluminum-air batteries through suppressing water activity by hydrogen bond-rich glycerol solvent additive

Thi Huong Pham
, Woo Hyuk Lee
, Ji Hae Byun
, Jung Gu Kim

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

In this work, glycerol is introduced as a low-cost and eco-friendly electrolyte additive for primary aluminum-air (Al-air) battery. Glycerol molecules form hydrogen bonds (H-bonds) with water (H₂O) molecules to reconstruct hydrogen bond network in the electrolyte, leading to a reduction in the H₂O activity. Accordingly, the hydrogen evolution potential of electrolyte is expanded, the hydrogen evolution reaction (HER) and self-corrosion of Al anodes are suppressed. As a result, the capacity density, and energy density of Al-air battery are increased significantly in the presence of glycerol. With the glycerol content of 20% in 4 M NaOH electrolyte, the capacity density of Al-air battery exhibits a value of 2564 mAh g ⁻ ¹, which is 2.3 times higher than in 4 M NaOH electrolyte.

Original language	English
Pages (from-to)	406-416
Number of pages	11
Journal	Energy Storage Materials
Volume	55
DOIs	https://doi.org/10.1016/j.ensm.2022.12.012
State	Published - Jan 2023

Keywords

Aqueous aluminum-air battery
Corrosion inhibition
Hydrogen bond network
Nmr
Solvation shells
Water activity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ensm.2022.12.012

Cite this

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title = "Improving the performance of primary aluminum-air batteries through suppressing water activity by hydrogen bond-rich glycerol solvent additive",

abstract = "In this work, glycerol is introduced as a low-cost and eco-friendly electrolyte additive for primary aluminum-air (Al-air) battery. Glycerol molecules form hydrogen bonds (H-bonds) with water (H2O) molecules to reconstruct hydrogen bond network in the electrolyte, leading to a reduction in the H2O activity. Accordingly, the hydrogen evolution potential of electrolyte is expanded, the hydrogen evolution reaction (HER) and self-corrosion of Al anodes are suppressed. As a result, the capacity density, and energy density of Al-air battery are increased significantly in the presence of glycerol. With the glycerol content of 20\% in 4 M NaOH electrolyte, the capacity density of Al-air battery exhibits a value of 2564 mAh g − 1, which is 2.3 times higher than in 4 M NaOH electrolyte.",

keywords = "Aqueous aluminum-air battery, Corrosion inhibition, Hydrogen bond network, Nmr, Solvation shells, Water activity",

author = "Pham, \{Thi Huong\} and Lee, \{Woo Hyuk\} and Byun, \{Ji Hae\} and Kim, \{Jung Gu\}",

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year = "2023",

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doi = "10.1016/j.ensm.2022.12.012",

language = "English",

volume = "55",

pages = "406--416",

journal = "Energy Storage Materials",

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TY - JOUR

T1 - Improving the performance of primary aluminum-air batteries through suppressing water activity by hydrogen bond-rich glycerol solvent additive

AU - Pham, Thi Huong

AU - Lee, Woo Hyuk

AU - Byun, Ji Hae

AU - Kim, Jung Gu

PY - 2023/1

Y1 - 2023/1

N2 - In this work, glycerol is introduced as a low-cost and eco-friendly electrolyte additive for primary aluminum-air (Al-air) battery. Glycerol molecules form hydrogen bonds (H-bonds) with water (H2O) molecules to reconstruct hydrogen bond network in the electrolyte, leading to a reduction in the H2O activity. Accordingly, the hydrogen evolution potential of electrolyte is expanded, the hydrogen evolution reaction (HER) and self-corrosion of Al anodes are suppressed. As a result, the capacity density, and energy density of Al-air battery are increased significantly in the presence of glycerol. With the glycerol content of 20% in 4 M NaOH electrolyte, the capacity density of Al-air battery exhibits a value of 2564 mAh g − 1, which is 2.3 times higher than in 4 M NaOH electrolyte.

AB - In this work, glycerol is introduced as a low-cost and eco-friendly electrolyte additive for primary aluminum-air (Al-air) battery. Glycerol molecules form hydrogen bonds (H-bonds) with water (H2O) molecules to reconstruct hydrogen bond network in the electrolyte, leading to a reduction in the H2O activity. Accordingly, the hydrogen evolution potential of electrolyte is expanded, the hydrogen evolution reaction (HER) and self-corrosion of Al anodes are suppressed. As a result, the capacity density, and energy density of Al-air battery are increased significantly in the presence of glycerol. With the glycerol content of 20% in 4 M NaOH electrolyte, the capacity density of Al-air battery exhibits a value of 2564 mAh g − 1, which is 2.3 times higher than in 4 M NaOH electrolyte.

KW - Aqueous aluminum-air battery

KW - Corrosion inhibition

KW - Hydrogen bond network

KW - Nmr

KW - Solvation shells

KW - Water activity

UR - https://www.scopus.com/pages/publications/85143648569

U2 - 10.1016/j.ensm.2022.12.012

DO - 10.1016/j.ensm.2022.12.012

M3 - Article

AN - SCOPUS:85143648569

SN - 2405-8297

VL - 55

SP - 406

EP - 416

JO - Energy Storage Materials

JF - Energy Storage Materials

ER -

Improving the performance of primary aluminum-air batteries through suppressing water activity by hydrogen bond-rich glycerol solvent additive

Abstract

Keywords

UN SDGs

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