# Gravimetric Analysis of Lithium-Air Batteries during Discharge/Charge Cycles

https://mdr.nims.go.jp/datasets/59cde200-2926-4c65-bb25-09f89042f661

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## Id

59cde200-2926-4c65-bb25-09f89042f661

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-12-04T08:19:31.572925Z

## Updated at

2025-12-15T23:30:45.357258Z

## Published at

2025-12-15T23:07:38.256787Z

## Doi

https://doi.org/10.48505/nims.4306

## First published url

https://doi.org/10.1016/j.jpowsour.2023.233924

## Date published

2023-12-16

## Recorded date published

2024-2

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Gravimetric Analysis of Lithium-Air Batteries during Discharge/Charge Cycles
  title_type: original
  lang: en

## Description

- description: Because the mass of lithium-air battery (LAB) changes due to oxygen
    reduction/evolution reactions (ORR/OER), weighing of the battery is an indispensable
    method for determining its actual energy density and analyzing the battery reactions.
    To this end, we have newly developed a weight monitoring system which can trace
    the long-term weight change of air-batteries with a precision of 7.87 μg for a
    week. The system reveals the weight decrease of LAB in each cycle before finally
    losing its capacity. The in-situ weighing during battery operation also provides
    first-hand evidence of double layer capacitance and electrolyte evaporation of
    LABs. Specifically, the e-/O2 ratio during discharge is determined to be 1.954
    ± 0.004 based on the weight increase of an LAB cell using tetraethylene glycol-based
    electrolyte at a current density of 100 μA cm-2, confirming the slightly lower
    e-/O2 ratio than the ideal two electron ORR. During charge, the initial weight
    decrease is 5.4% less than the 2e-/O2 OER process, and the weight decreases sharply
    at the end of charge due to CO2 evolution. The main rates of weigh increase/decrease
    remain the same throughout the cycle life, but side reactions are accelerated
    with cycling, causing the deterioration of LABs.
  description_type: abstract
  lang: eng

## Creator

- name: 野村 晃敬
  role: author
  orcid: https://orcid.org/0000-0001-5012-4739
  organization: National Institute for Materials Science
  department: Center for Green Research on Energy and Environmental Materials/Rechargeable
    Battery Materials Group
  ror: https://ror.org/026v1ze26
- name: 伊藤 仁彦
  role: author
  orcid: https://orcid.org/0000-0003-0611-9590
  organization: National Institute for Materials Science
  department: Center for Green Research on Energy and Environmental Materials/Battery
    Materials Analysis Group
  ror: https://ror.org/026v1ze26
- name: ユ デニス ヤウワイ
  role: author
  orcid: https://orcid.org/0000-0002-5883-7087
  organization: National Institute for Materials Science
  department: Center for Green Research on Energy and Environmental Materials/Rechargeable
    Battery Materials Group
  ror: https://ror.org/026v1ze26
- name: 久保 佳実
  role: author
  organization: National Institute for Materials Science
  department: Center for Green Research on Energy and Environmental Materials
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier

## Managing organization



## Keyword

- subject: Lithium-air battery
  schema: not_defined
- subject: Battery weight change
  schema: not_defined
- subject: Oxygen reduction reaction
  schema: not_defined
- subject: Oxygen evolution reaction
  schema: not_defined
- subject: Electrolyte evaporation
  schema: not_defined
- subject: Double layer capacity
  schema: not_defined

## Rights

- description: "© 2023. This manuscript version is made available under the CC-BY-NC-ND
    4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/."
  identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-12-16
end_date: 2025-12-16

## Journal

- title: JOURNAL OF POWER SOURCES
  issn: '18732755'
  volume: '592'
  issue: '1'

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