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A nickel-plated wood chip with high conductivity and high flexibility and preparation method thereof

A high-conductivity and flexibility technology, applied in the field of high-conductivity and high-flexibility nickel-plated wood chips and their preparation, can solve the problems of high flexibility, high conductivity of difficult wood, etc.

Active Publication Date: 2020-09-25
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing technology is difficult to achieve high conductivity and high flexibility of wood

Method used

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  • A nickel-plated wood chip with high conductivity and high flexibility and preparation method thereof
  • A nickel-plated wood chip with high conductivity and high flexibility and preparation method thereof
  • A nickel-plated wood chip with high conductivity and high flexibility and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Take 30×20×1.1mm size balsa wood longitudinal section slice, immerse in 2.5mol / L NaOH and 0.4mol / L Na 2 SO 3 Hydrothermal treatment in the mixed aqueous solution at 130℃ for 7h;

[0031] (2) The balsa wood flakes obtained in step (1) are washed with deionized water and immersed in 0.5mol / L HCl and 0.05mol / L SnCl 2 10min in the mixed aqueous solution;

[0032] (3) The balsa wood flakes obtained in step (2) are quickly washed with deionized water and then immersed in 0.036mol / L HCl and 20μg / mL PdCl 2 In the mixed aqueous solution for 10 minutes, quickly rinse with deionized water;

[0033] (4) Configure 0.034mol / L Na 3 C 6 H 5 O 7 , 0.561mol / L NH 4 Cl, 0.0712mol / L NiSO 4 And 0.283mol / L NaH 2 PO 2 Adjust the pH to 9-10 with ammonia water, and then immerse the balsa wood flakes obtained in step (3) in it for 6 hours;

[0034] (5) The balsa wood flakes obtained in step (4) are washed with deionized water, freeze-dried, and then compressed at 10 MPa.

[0035] The schematic diagram ...

Embodiment 2

[0041] (1) Take a 30×20×0.5mm size linden wood longitudinal section slice, soak it in 2.5mol / L NaOH and 0.4mol / LNa 2 SO 3 Hydrothermal treatment in the mixed aqueous solution at 130℃ for 7h;

[0042] (2) The linden wood flakes obtained in step (1) are washed with deionized water and immersed in 0.5mol / L HCl and 0.05mol / LSnCl 2 10min in the mixed aqueous solution;

[0043] (3) The linden wood flakes obtained in step (2) are quickly washed with deionized water, and then immersed in 0.036mol / L HCl and 20μg / mL PdCl 2 In the mixed aqueous solution for 10 minutes, quickly rinse with deionized water;

[0044] (4) Configure 0.034mol / L Na 3 C 6 H 5 O 7 , 0.561mol / L NH 4 Cl, 0.0712mol / L NiSO 4 And 0.283mol / LNaH 2 PO 2 Adjust the pH to 9-10 with ammonia water, and then immerse the linden wood flakes obtained in step (3) in it for 3h;

[0045] (5) The linden wood flakes obtained in step (4) are washed with deionized water, freeze-dried, and then compressed at 15 MPa.

[0046] The tensile strength o...

Embodiment 3

[0048] (1) Take a 30×20×1.5mm size paulownia longitudinal section slice, soak in 2.5mol / L NaOH and 0.4mol / L Na 2 SO 3 Hydrothermal treatment in the mixed aqueous solution at 130℃ for 7h;

[0049] (2) The paulownia flakes obtained in step (1) are washed with deionized water and immersed in 0.5mol / L HCl and 0.05mol / LSnCl 2 10min in the mixed aqueous solution;

[0050] (3) The paulownia flakes obtained in step (2) are quickly washed with deionized water and then immersed in 0.036mol / L HCl and 20μg / mL PdCl 2 In the mixed aqueous solution for 10 minutes, quickly rinse with deionized water;

[0051] (4) Configure 0.034mol / L Na 3 C 6 H 5 O 7 , 0.561mol / L NH 4 Cl, 0.0712mol / L NiSO 4 And 0.283mol / LNaH 2 PO 2 Adjust the pH to 9-10 with ammonia water, and then immerse the paulownia wood flakes obtained in step (3) for 10h;

[0052] (5) The paulownia flakes obtained in step (4) are washed with deionized water, freeze-dried, and then compressed at 5 MPa.

[0053] The tensile strength of the nickel-p...

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Abstract

A high-conductivity and high-flexibility nickel-plated wood chip and a preparation method thereof are disclosed. A longitudinal section sheet of wood is immersed in a mixed aqueous solution of NaOH and Na2SO3 for hydrothermal treatment, then immersed in a mixed aqueous solution of HCl and SnCl2, and then immersed in a mixed aqueous solution of HCl and PdCl2 and then immersed in a mixed aqueous solution of Na3C6H5O7, NH4Cl, NiSO4 and NaH2PO2 for electroless plating, and finally subjected to freeze drying and high pressure pressing, so as to obtain the nickel-plated wood chip. The nickel-platedwood chips has both high conductivity and high flexibility, and the conductivity of the nickel-plated balsa wood chips is as high as 1.15*10<3>Sm<-1>, the tensile strength is up to 21.9 MPa, which isexpected to be used as a flexible current collector in the field of flexible energy storage devices.

Description

Technical field [0001] The invention relates to the technical field of flexible electrodes, in particular to a nickel-plated wood chip with high conductivity and flexibility and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the improvement of human living standards, wearable electronic devices have developed rapidly, making flexible energy storage devices a research focus. For flexible energy storage devices, the core is flexible electrodes, and one of the key technologies of flexible electrodes is flexible current collectors. At present, carbon cloth and graphene foam are the two most widely used flexible current collectors in academia, but their high price limits their commercial prospects. For this reason, it is of great significance to develop a flexible current collector with low cost, environmental friendliness, excellent flexibility and good conductivity. [0003] Wood is a natural resource with abundant rese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/32C23C18/20C23C18/28C23C18/30C23C18/32
CPCB27K3/32C23C18/2086C23C18/285C23C18/30C23C18/32
Inventor 陈继章陈敏峰
Owner NANJING FORESTRY UNIV