# A weak-solvation strategy for modulating Li ion solvation sheath to enable fast-charging Li-ion batteries

https://mdr.nims.go.jp/datasets/d6144a40-042b-498b-808c-718b86c8d67f

## File

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## Id

d6144a40-042b-498b-808c-718b86c8d67f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-03-23T04:36:17.909334Z

## Updated at

2026-03-23T04:50:47.471951Z

## Published at

2026-03-23T07:22:21.370247Z

## Doi

https://doi.org/10.48505/nims.6230

## First published url

https://doi.org/10.1016/j.jcis.2026.140177

## Date published

2026-02-23

## Recorded date published

2026-7

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: A weak-solvation strategy for modulating Li ion solvation sheath to enable
    fast-charging Li-ion batteries
  title_type: original
  lang: en

## Description

- description: 'Graphite is the common anode material used in lithium-ion batteries
    (LIBs). However, they show poor kinetics in traditional carbonate-based electrolytes,
    which limits the fast-charging performance of the corresponding LIBs. Here, a
    weak-solvation strategy is introduced to modulate the local environment around
    the Li ions and the electrode/electrolyte interfacial chemistry to facilitate
    Li+ transport. Specifically, the study finds the use of methyl acetate (MA) as
    a co-solvent with lithium bis(fluorosulfonyl)imide (LiFSI) salt and ethyl methyl
    carbonate (EMC) can weaken the interactions of Li+ with the solvent molecules,
    generating a LiF-rich solid electrolyte interphase on the graphite anode, thereby
    improving its fast-charging performance. In addition, the desolvation energy of
    Li+ is further reduced by fluorinating EMC (FEMC), owing to the strong electron-withdrawing
    effect of fluorine. With a 1 M LiFSI FEMC/MA (1:1, v) + 10 wt% fluorinated ethylene
    carbonate electrolyte, graphite anode shows a lithiation capacity of about 230
    mAh g-1 at 1488 mA g-1 (4 Cgraphite rate), significantly higher than that obtained
    in a LiPF6-based conventional electrolyte. The weakly-solvating electrolyte with
    LiFSI, FEMC and MA is also compatible with LiFePO4 cathodes, where a LiFePO4 |
    graphite full cell can be cycled even at a charging rate of 4.5 Cfullcell. '
  description_type: abstract
  lang: und

## Creator

- name: Yiyi Zheng
  role: author
- name: Jiapei Li
  role: author
- name: Tian Zhang
  role: author
- name: Qiaohui Duan
  role: author
- name: Shuyu Dong
  role: author
- name: Zhiqiang Guan
  role: author
- name: Dewu Lin
  role: author
- name: Wenjun Zhang
  role: author
- name: Denis Y.W. Yu
  role: author
  orcid: https://orcid.org/0000-0002-5883-7087

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: lithium-ion battery
  schema: not_defined
- subject: graphite anode
  schema: not_defined
- subject: solvation structure
  schema: not_defined
- subject: weakly-solvating electrolyte
  schema: not_defined
- subject: fast-charging performance
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Colloid and Interface Science
  issn: '00219797'
  volume: '713'
  article_number: '140177'

## Conference



## Related item



## Funding

- funder_name: National Institute for Materials Science

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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