Metal-ion battery and method for preparing the same

A metal ion and battery technology, which is applied in the manufacture of electrolyte batteries, secondary batteries, battery electrodes, etc., can solve problems such as low battery capacity and low battery discharge voltage, and achieve the effect of increasing the number of discharge voltage platforms and increasing the total power generation

Active Publication Date: 2017-11-24
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional metal-ion batteries face problems such as low battery discharge voltage, capacitive behavior with no discharge voltage plateaus, and low battery capacity.

Method used

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  • Metal-ion battery and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Provide an aluminum foil with a thickness of 0.025mm and cut it to obtain an aluminum electrode. Next, provide an isolation membrane (glass filter paper (2 layers), the product number is Whatman GFA) and a graphite electrode (including an active material arranged on a collector substrate, wherein the collector substrate is carbon fiber paper, The active material is expanded graphite (53mg)). Next, the aluminum electrode (as the negative electrode), the separator (as the separator), and the graphite electrode (as the positive electrode) are arranged in the order, and the aluminum plastic film is used to encapsulate and inject the electrolyte (aluminum chloride (AlCl) 3 ) / Ferrous chloride (FeCl 2 ) / 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl), of which AlCl 3 FeCl 2 The total molar ratio of [EMIm]Cl is about 1.4:1, and FeCl 2 With AlCl 3 The molar ratio of is about 1:13) to obtain a metal ion battery (1).

[0036] Next, use the NEWARE battery analyzer to measure the batte...

Embodiment 2

[0039] Provide an aluminum foil with a thickness of 0.025mm and cut it to obtain an aluminum electrode. Next, provide an isolation membrane (glass filter paper (2 layers), the product number is Whatman GFA) and a graphite electrode (including an active material arranged on a collector substrate, wherein the collector substrate is carbon fiber paper, The active material is expanded graphite (57mg)). Then, the aluminum electrode (as the negative electrode), the separator, and the graphite electrode (as the positive electrode) are arranged in the order, and the aluminum plastic film is used to encapsulate and inject the electrolyte (aluminum chloride (AlCl) 3 ) / Ferrous chloride (FeCl 2 ) / 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl), of which AlCl 3 FeCl 2 The total molar ratio of [EMIm]Cl is about 1.4:1, and FeCl 2 With AlCl 3 The molar ratio is about 1:13) to obtain a metal ion battery (2).

[0040] Next, use the NEWARE battery analyzer to measure the battery performance of the ...

Embodiment 3

[0042] Follow the method described in Example 1, except that FeCl 2 With AlCl 3 The molar ratio of Zn was changed from 1:13 to 1:27, and the expanded graphite was reduced from 53mg to 42mg to obtain a metal ion battery (3).

[0043] Next, use the NEWARE battery analyzer to measure the battery performance of the metal ion battery (3) obtained in Example 3 (the measurement conditions are: charge and discharge test (1000mA / g) in a constant current mode, and the charge cut-off voltage is 2.7V, The discharge cut-off voltage is 0.3V), it can be known that its maximum specific capacity is 176mAh / g, such as Figure 4 And as shown in Table 1.

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Abstract

A metal-ion battery and a method for preparing the same are provided. The metal-ion battery includes a positive electrode, a separator, a negative electrode, and an electrolyte. The positive electrode is separated from the negative electrode via the separator, and the electrolyte is disposed between the positive electrode and the negative electrode. In particular, the electrolyte includes an ionic liquid, an aluminum halide, and a metal halide, wherein the metal halide is silver halide, copper halide, cobalt halide, ferric halide, zinc halide, indium halide, cadmium halide, nickel halide, tin halide, chromium halide, lanthanum halide, yttrium halide, titanium halide, manganese halide, molybdenum halide, or a combination thereof.

Description

Technical field [0001] The invention relates to an energy storage element and a preparation method thereof, and more particularly to a metal ion battery and a preparation method thereof. Background technique [0002] Aluminum is abundant in the earth, and electronic devices using aluminum as a material have lower costs. In the application of energy storage elements, the number of electrons transferred by aluminum during electrochemical charging and discharging can reach three, so it can provide higher energy storage capacity. Furthermore, because aluminum has low flammability and electronic redox properties, the safety of metal ion batteries in use is greatly improved. [0003] However, traditional metal ion batteries face problems such as low battery discharge voltage, capacitance behavior of discharge voltage plateaus, and low battery capacity. Therefore, the industry needs a new metal ion battery to solve the above problems. Summary of the invention [0004] The purpose of the...

Claims

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Application Information

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IPC IPC(8): H01M10/0568H01M10/058H01M10/054
CPCH01M10/054H01M10/0568H01M10/058H01M10/056H01M2300/0022H01M4/663Y02E60/10Y02P70/50H01M4/587H01M4/133H01M4/134H01M4/1393H01M4/0459H01M4/0445H01M2300/0045H01M2300/002H01M4/583H01M10/0563
Inventor 江建志陈光耀林俊凱吴俊星
Owner IND TECH RES INST
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