Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrolyte composition and metal ion battery comprising same

A metal ion and composition technology, applied in the field of metal ion batteries, can solve the problems of mass production limitation, battery cycle stability reduction, electrolyte decomposition, etc., and achieve the effects of prolonging cycle life, improving operating potential, and high conductivity

Active Publication Date: 2022-02-22
IND TECH RES INST
View PDF19 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, excess aluminum chloride is easy to react with water molecules in the environment, causing the electrolyte to decompose, which reduces the cycle stability of the battery and limits mass production.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrolyte composition and metal ion battery comprising same
  • Electrolyte composition and metal ion battery comprising same
  • Electrolyte composition and metal ion battery comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Mix aluminum chloride with 1,2-dimethyl-3-propylimidazolium chloride (1,2-dimethyl-3-propylimidazoliumchloride, DMPIC), wherein aluminum chloride and 1,2-dimethyl-3- The molar ratio of propyl imidazolium chloride (DMPIC) was 1.1. Next, lithium chloride was added, wherein the weight percentage of lithium chloride was 5.2 wt%, based on the total weight of aluminum chloride and 1,2-dimethyl-3-propyl imidazolium chloride. After continuous stirring for 12 hours, lithium bis(oxalato)borate (LiBOB) was added, wherein the molar percentage of lithium bis(oxalato)borate was 1 mol%, with aluminum chloride and 1,2-dimethyl-3-propane The total molar number of imidazolium chloride salt is a benchmark. After continuous stirring for 12 hours, an electrolyte composition (1) was obtained.

Embodiment 2

[0044] Proceed according to the preparation method of the electrolyte composition (1) described in Example 1, except that the molar percentage of lithium dioxalate borate was reduced from 1 mol% to 0.5 mol%, to obtain the electrolyte composition (2).

Embodiment 3

[0046] Proceed according to the preparation method of the electrolyte composition (1) described in Example 1, except that the molar percentage of lithium dioxalate borate was increased from 1 mol% to 1.5 mol%, to obtain the electrolyte composition (3).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The present disclosure provides an electrolyte composition and a metal ion battery comprising the same. The electrolyte composition comprises: a metal chloride; an imidazolium salt having a structure represented by formula (I); an alkali metal halide; and a borate containing oxalate. Among them, R 1 , R 2 , R 3 can stand alone as C 1‑8 Alkyl, C 2‑8 Alkenyl, C 2‑8 Alkynyl, C 1‑8 Alkoxy, C 2‑8 Alkoxyalkyl, or C 1‑8 Fluoroalkyl; and, X ‑ for F ‑ , Cl ‑ ,Br ‑ , or I ‑ . The metal chloride is aluminum chloride, ferric chloride, zinc chloride, copper chloride, manganese chloride, chromium chloride, or a combination thereof.

Description

technical field [0001] The present disclosure pertains to electrolyte compositions and metal ion batteries comprising the same. Background technique [0002] Aluminum is abundant on the earth, and electronic devices using aluminum as a material have relatively low cost. Due to the low flammability and electronic redox properties of aluminum, the safety of metal ion batteries in use is greatly improved. [0003] Electrolyte compositions used in traditional metal ion batteries include ionic liquids. Taking aluminum ion batteries as an example, some aluminum ion batteries use aluminum chloride / imidazolium chloride salt as the electrolyte composition. Although the traditional electrolyte composition using aluminum chloride / imidazolium chloride salt has good electrochemical reversibility, the operating potential of the traditional electrolyte composition is low, which limits the energy density and product application range. In addition, in the traditional electrolyte compositi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0567H01M10/0568H01M10/054
CPCH01M10/0567H01M10/0568H01M10/054H01M2300/0025C07D233/58H01M4/661H01M4/663H01M4/72H01M4/80Y02E60/10C07F5/022
Inventor 黄筱雯许峻综张哲维潘秉毅江建志杨昌中
Owner IND TECH RES INST