A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 143

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 143
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 209
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 994
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3134
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Electrolyte engineering via ether solvent fluorination for developing stable non-aqueous lithium metal batteries. | LitMetric

AI Article Synopsis

  • Fluorination of ether solvents enhances electrochemical stability in lithium metal batteries but can reduce ionic conductivity if overdone.
  • The study introduces targeted trifluoromethylation of 1,2-dimethoxyethane to create TFDMP, a new solvent for a non-aqueous electrolyte solution featuring improved conductivity and stability.
  • The optimized electrolyte shows a high ionic conductivity, impressive oxidation stability, and effective prevention of Al corrosion, resulting in strong battery performance with significant discharge capacity retention over multiple cycles.

Article Abstract

Fluorination of ether solvents is an effective strategy to improve the electrochemical stability of non-aqueous electrolyte solutions in lithium metal batteries. However, excessive fluorination detrimentally impacts the ionic conductivity of the electrolyte, thus limiting the battery performance. Here, to maximize the electrolyte ionic conductivity and electrochemical stability, we introduce the targeted trifluoromethylation of 1,2-dimethoxyethane to produce 1,1,1-trifluoro-2,3-dimethoxypropane (TFDMP). TFDMP is used as a solvent to prepare a 2 M non-aqueous electrolyte solution comprising bis(fluorosulfonyl)imide salt. This electrolyte solution shows an ionic conductivity of 7.4 mS cm at 25 °C, an oxidation stability up to 4.8 V and an efficient suppression of Al corrosion. When tested in a coin cell configuration at 25 °C using a 20 μm Li metal negative electrode, a high mass loading LiNiCoMnO-based positive electrode (20 mg cm) with a negative/positive (N/P) capacity ratio of 1, discharge capacity retentions (calculated excluding the initial formation cycles) of 81% after 200 cycles at 0.1 A g and 88% after 142 cycles at 0.2 A g are achieved.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849263PMC
http://dx.doi.org/10.1038/s41467-023-35934-1DOI Listing

Publication Analysis

Top Keywords

ionic conductivity
12
lithium metal
8
metal batteries
8
electrochemical stability
8
non-aqueous electrolyte
8
electrolyte solution
8
electrolyte
6
electrolyte engineering
4
engineering ether
4
ether solvent
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!

A PHP Error was encountered

Severity: Notice

Message: fwrite(): Write of 34 bytes failed with errno=28 No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 272

Backtrace:

A PHP Error was encountered

Severity: Warning

Message: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /var/lib/php/sessions)

Filename: Unknown

Line Number: 0

Backtrace: