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

Electrochemical element, and module and battery comprising same

An electrochemical element and element technology, applied in the field of energy storage, can solve problems such as deterioration of solid electrolyte characteristics

Pending Publication Date: 2022-07-15
萨弗特公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the properties of solid electrolytes deteriorate upon contact with moisture

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
  • Electrochemical element, and module and battery comprising same
  • Electrochemical element, and module and battery comprising same
  • Electrochemical element, and module and battery comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0130] In order to verify the chemical protection of the enclosures according to the invention, experiments were carried out with pouches of selected materials.

[0131] By mechanosynthesis (500rpm, 20h), from the precursor Li 2 S.P 2 S 5 and LiCl are produced in stoichiometric proportions with Li 6 PS 5 Argyrodite sulfide electrolyte of Cl composition. The ionic conductivity of this electrolyte was measured by impedance spectroscopy on pellets compressed at 250 MPa in a pressurized cell and reached 1 mS / cm at room temperature (RT).

[0132] On the other hand, the obtained sulfide electrolyte powder was compressed at 250 MPa to form pellets having a thickness of 400 μm and a diameter of 10 mm.

[0133] A sheet of dyMAT ClrPYE MONO (285 μm - sold by COVEME Corporation) and a sheet of ultra-barrier solar film (203 μm - sold by 3M TM Company sales) were placed on both sides of the sulfide electrolyte pellets to make an outer cover (Example #2). The edges of the cover thus ...

Embodiment 2

[0139] Considering the sensitivity of the materials used to ambient air, the following operations are performed in an environment with a dew point below -50°C, and can be performed in an argon atmosphere.

[0140]The sulfide electrolyte powder (as produced in Example 1) was cold compressed (200 MPa) in a granulator to form pellets ('electrolyte layer') with a thickness of about 400 μm. The sulfide electrolyte powder and the active cathode material (NCA) powder were mixed with a mortar and pestle in a mass ratio NCA:SE of 70:30 until uniform distribution was achieved. This mixture (making up the positive electrode) was added to one side of the electrolytic layer in the granulator, and the assembly was compressed again (200 MPa) to form dense solid pellets (the thickness of the positive electrode was close to 100 μm). On the other side of the electrolytic layer, a negative electrode composed of graphite and solid electrolyte powder was added, and the graphite and solid electroly...

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
Ionic conductivityaaaaaaaaaa
Login to View More

Abstract

The present invention relates to an electrochemical element, in particular a sulfur-containing solid electrolyte element, comprising a protective housing, as well as a module and a battery comprising such an element.

Description

technical field [0001] The present invention relates to the present invention relates to the field of energy storage, more specifically to batteries, especially lithium batteries. Background technique [0002] In fact, rechargeable lithium-ion batteries provide excellent energy and bulk density and currently lead the markets for portable electronics, electric and hybrid vehicles, and stationary energy storage systems. [0003] Their operation is based on the reversible exchange of lithium ions between the positive and negative electrodes separated by an electrolyte. [0004] Furthermore, solid electrolytes offer a lot of room for improvement in terms of safety, given their much lower risk of fire than liquid electrolytes. [0005] However, the properties of solid electrolytes deteriorate upon contact with moisture. In the case of sulphur-containing electrolytes, moisture can especially lead to harmful gases (H 2 S) emissions. [0006] Therefore, it is worth developing so...

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
IPC IPC(8): H01M10/0562H01M10/052H01M6/18H01M50/204H01M50/24H01M10/0585H01M10/0525
CPCH01M10/052H01M10/0562H01M6/18H01M2300/0068H01M10/0525H01M10/0585H01M50/24H01M50/204Y02E60/10H01M50/231H01M50/124H01M50/102H01M50/229H01M50/133H01M50/122H01M50/14
Inventor 樊尚·佩莱克里斯蒂安·若尔迪纳德杰·鲁默古斯
Owner 萨弗特公司