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

Wall for separating electrolytes for the selective transfer of cations through the wall, and associated manufacturing method and transfer method

An electrolyte and cation technology, applied in the field of electrolysis, can solve the problems of inability to obtain lithium transmission, thickness reduction, and increased transmission rate limit

Inactive Publication Date: 2013-06-12
UNIVERSITY OF LORRAINE
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The experiment also showed that as the thickness of the wall decreases, the limitation of transmission rate increases
However, the required mechanical strength of the wall limits the reduction of its thickness
[0018] Furthermore, lithium transport cannot be obtained with these walls

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
  • Wall for separating electrolytes for the selective transfer of cations through the wall, and associated manufacturing method and transfer method
  • Wall for separating electrolytes for the selective transfer of cations through the wall, and associated manufacturing method and transfer method
  • Wall for separating electrolytes for the selective transfer of cations through the wall, and associated manufacturing method and transfer method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] Preparation of porous supports

[0055] The porous support 21 is commercially available as mullite, quartz, or ceramic. By way of example, embodiments are described in detail below, taken from the protocol given by Garcia-Gabaldon et al. on the preparation of ceramic membranes based on kaolin and alumina to yield moldable porosity for their use as separator membranes in electrochemistry : Effect of porosity on the effective electrical conductivity of different ceramic membranes used as separators inelectrochemical reactors, Journal of Membranes Sciences 280(2006) 536-544.

[0056] The protocol is as follows: First, mix 5 g of a material consisting of:

[0057] - 2.52g of Kaolin (hydrated aluminum silicate) Al 2 Si 2 o 5 (OH) 4 ,

[0058] - 3.80g of aluminum oxide Al 2 o 3 ,

[0059] -1g of spot potato starch.

[0060] The powder mixture was homogenized in a porcelain mortar and then moistened with a minimum volume of acetone to prevent the formation of aggrega...

Embodiment 1

[0101] A porous disc 21 covered by an active layer 22 based on a sulfur Chevre phase was used as the basis for Figure 5 The transfer wall 2 in the device, as described previously. For Mo 6 S 8 and Mo 6 Se 8 As well as two types of discs at different current densities, a first electrolyte containing E1 (0.1M Na in the medium 2 SO 4 , 0.1M of H 2 SO 4 M of 0.1M 2+ cation solution) and the first compartment 11 containing the second value-added electrolyte E2 (containing 0.1M Na 2 SO 4 and 0.1M of H 2 SO 4 ) transfer of cations between the second compartment 12 . The purpose of this study was to detect the different cations M n+ The transmission induced current yield (faradaic yield) to determine the porous Mo 6 S 8 and Mo 6 Se 8 Disc constraints and evaluation of current density constraints. The transfer process is based on the previous condition that a large number of X / 2 Mo 6 x 8 The stoichiometric deposition of Mo 6 x 8 Evaluate the amount of intercalat...

Embodiment 2

[0124] In this embodiment, the active layer 22 is made of the material LiCoO 2 fabricated with a thickness of about 80 μm. Such materials are used, for example, in positive electrodes of lithium-ion batteries. The first electrolyte is in 1M Na 2 SO 4 1 M aqueous solution of Li+ in medium. The second electrolyte that acts as a value-added solution is Na 2 SO 4 1M aqueous solution. The results are given in Table 7.

[0125] Table 7

[0126] Current density (A / m 2 )

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
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a wall for separating electrolytes, comprising an active layer (22) made of a material capable of developing intercalation and deintercalation reactions for the selective transfer of cations through the wall, and a supporting layer (21) which is made of a porous material and used as carrier for the active layer (22). A method for selectively transferring cations uses such a transfer wall (2). According to a method for manufacturing such a transfer wall (2), a solution including an active material in the form of a powder, a binder, and a solvent is prepared, and then the surface of a supporting layer (21) made of a porous material is coated with said solution and the solvent is evaporated.

Description

technical field [0001] The present invention relates to an electrolyte separation wall for selectively transporting cations through the wall, a method for manufacturing the wall, and a method for selectively transporting cations through the wall. The invention also relates to a method of the electrolytic type in which the transport of cations from a first electrolyte solution containing one or more types of ions of the same or different charge to a second electrolyte solution is ensured by suitable walls. Background technique [0002] This type of process is known for use as a separation wall, a wall formed of chalcogenides containing molybdenum clusters, in particular the so-called Chevre phase ( Chevrel phase) Mo 6 x 8 Mutually. This method is also the subject of the following publications: [0003] -Electrochemical reactions of reversible intercalation in Chevrel compounds for cationic transfer-Principle and application on Co 2+ ion;S.Seghir,C.Boulanger,S.Diliberto,J...

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 Applications(China)
IPC IPC(8): C01G39/00C02F1/469H01M2/16H01M50/434H01M50/437H01M50/491
CPCC02F1/469C02F2101/20C02F2201/46115Y02E60/10H01M50/44H01M50/437H01M50/491H01M50/434C25B15/08
Inventor 让-玛丽·勒屈尔萨金娜·萨吉尔克洛蒂尔德·布朗热塞巴斯蒂安·迪利贝托乔斯·洛佩斯
Owner UNIVERSITY OF LORRAINE