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Perfluorosodium polymer electrolyte, preparation method and application thereof, all-solid-state sodium-ion battery and triboelectric nanogenerator system

A nano-generator and sodium-ion battery technology, applied in the field of sodium-ion batteries, can solve problems such as low safety, inability to provide stable power output, and flammability, and achieve broad market prospects, high-efficiency and stable power output, The effect of long service life

Active Publication Date: 2020-10-13
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] One of the objectives of the present invention is to solve the problem of low safety caused by the flammability of the liquid electrolyte of the all-solid-state sodium-ion battery, and provide a solid-state all-solid-state battery with high safety and improved battery cycle life and energy density. Sodium fluoride polymer electrolyte, and an all-solid-state sodium-ion battery containing the solid-state perfluorinated sodium polymer electrolyte
[0011] The second object of the present invention is to solve the problem that the energy captured by the existing triboelectric nanogenerator cannot provide stable electric energy output, and provide an energy storage device containing a solid-state perfluorosodium polymer electrolyte to store the energy captured by the triboelectric nanogenerator. power, and achieve efficient and stable power output

Method used

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  • Perfluorosodium polymer electrolyte, preparation method and application thereof, all-solid-state sodium-ion battery and triboelectric nanogenerator system
  • Perfluorosodium polymer electrolyte, preparation method and application thereof, all-solid-state sodium-ion battery and triboelectric nanogenerator system
  • Perfluorosodium polymer electrolyte, preparation method and application thereof, all-solid-state sodium-ion battery and triboelectric nanogenerator system

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0072] Preparation Example 1: Preparation of P2-type Na 0.67 Ni 0.23 Mg 0.1 mn 0.67 o 2

[0073] The molar ratio of ethylenediaminetetraacetic acid (EDTA), citric acid and total metal ions is 1:1.5:1. Dissolve stoichiometric EDTA in NH 3 ·H 2 O, and heated and stirred at 40 °C, and then the calculated amount of NaNO 3 added to the above solution. When NaNO 3 After complete dissolution, the calculated amount of Mn(NO 3 ) 2 4H 2 O, Ni(NO 3 ) 2 ·6H 2 O and Mg(NO 3 ) 2 ·6H 2O was dissolved in the above solution. After heating and stirring for 10min, the calculated amount of citric acid was added, and the process of adding citric acid was controlled (using NH 3 ·H 2 O adjustment) has a pH of about 6. The solution was then stirred at 70°C until a gel was formed, and then dried at 120°C for 24h. Finally, the obtained precursor was calcined in air at 900 °C for 15 h to obtain the final product. spare.

preparation example 2

[0074] Preparation Example 2: Preparation of P2-type Na 0.67 Ni 0.42 Mg 0.2 mn 0.38 o 2

[0075] This preparation example adopts the method similar to preparation example 1 to carry out, the difference is, the Mn(NO 3 ) 2 4H 2 O, Ni(NO 3 ) 2 ·6H 2 O and Mg(NO 3 ) 2 ·6H 2 The amount of O is different from that in Preparation 1, but according to the P2-type Na of this preparation 0.67 Ni 0.42 Mg 0.2 mn 0.38 o 2 Quantitative relationships are added to the aforementioned substances. The rest are the same as in Preparation Example 1.

[0076] Get P2-type Na 0.67 Ni 0.42 Mg 0.2 mn 0.38 o 2 spare.

Embodiment 1

[0077] Embodiment 1: Preparation of PFSA-Na-1

[0078] The perfluorosulfonic acid resin (PFSA) was converted into PFSA-Na-1 by ion-exchange method in 1M NaOH aqueous solution at 80° C. for 12 h. Then, it was washed with deionized water and dried in an Ar atmosphere in a glove box at 25 °C.

[0079] The flexible PFSA-Na-1 film prepared in this embodiment is as follows: figure 1 Shown in (a) and (b) in, wherein, (a) is the PFSA-Na-1 film in the folded state; (b) is the PFSA-Na-1 film in the recovered state.

[0080] Adopt plastic film tensile property test method (GBT13022-1991) to test the stress-strain relation of the PFSA-Na-1 film that present embodiment prepares, obtain figure 1 Typical stress-strain relationship curve of PFSA-Na-1 film shown in (c).

[0081] Then soak the PFSA-Na-1 membrane in 60mL of EC-PC (v:v=1:1) mixed solvent, and the mixed solvent is contained in a 20g Store in an airtight container with active molecular sieves at 25°C for 48 hours.

[0082] f...

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Abstract

The invention relates to the field of sodium-ion batteries and discloses a perfluoro sodium polymer electrolyte, a preparation method and an application of the perfluoro sodium polymer electrolyte, anall-solid-state sodium-ion battery and a friction nano-generator system; the preparation method of the perfluoro sodium polymer electrolyte comprises implementing ion exchange between perfluorinatedsulfonic acid resin and a Na+ containing solution. The provided all-solid-state sodium-ion battery comprises the above perfluoro sodium polymer electrolyte, and in addition, compared with a battery using a liquid electrolyte, the all-solid-state sodium-ion battery is excellent in safety and the energy density is higher.

Description

technical field [0001] The invention relates to the field of sodium ion batteries, in particular to a method for preparing a perfluorosodium polymer electrolyte, a perfluorosodium polymer electrolyte prepared by the method and its application, an all-solid sodium ion battery and a friction nanometer generator system. Background technique [0002] With the consumption of a large amount of fossil energy and the seriousness of environmental pollution, it is very necessary to develop new energy technologies to replace traditional fossil energy. [0003] In recent years, various principles and prototype devices for mechanical energy harvesting have also been reported, including electrostatic and frictional effects, electromagnetic effects, and piezoelectric effects. [0004] In particular, Professor Wang Zhonglin et al. have developed triboelectric nanogenerators (TENGs) based on the friction effect and electrostatic inductive coupling mechanism. TENGs can be used to capture va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/054H01M10/0568
CPCH01M10/054H01M10/0568Y02E60/10
Inventor 孙春文侯会丹
Owner BEIJING INST OF NANOENERGY & NANOSYST
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