A stretchable high-performance zn-MNO 2 Preparation method of battery
A high-performance, battery technology, applied in battery electrodes, secondary batteries, climate sustainability, etc., can solve the problems of complex preparation process, inability to large-scale production, and high cost, and achieve simple preparation process, low cost, and high efficiency. The effect of stretchability
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Embodiment 1
[0021] Take some commercial sponges, first clean them with deionized water, and then dry them in an oven to obtain sponges with a clean surface; then put them into the prepared PDDA solution with a concentration of 0.1% for stirring, and stir for 10 minutes Finally, take out the sponge and turn it over in the oven so that PDDA is evenly coated on the surface of the sponge. Put the coated sponge into silver nanowires with a concentration of 1mg / ml and 0.2 mg / ml graphene mixed solution, after stirring for 1 hour, remove the sponge and transfer it to an oven for continuous rotation, so that the silver nanowires and graphene are evenly coated on the surface of the sponge; finally, the above coated The sponge was coated with a layer of MnO on its surface by conventional soaking and electrodeposition methods respectively. 2 and Zn, after the experiment is completed, the obtained coating is dried and then transferred to a vacuum oven for PDMS permeation encapsulation to obtain the fi...
Embodiment 2
[0023] Take some commercial sponges, first clean them with deionized water and then dry them in an oven to obtain sponges with a clean surface; put the cleaned sponges into a concentration of 1 mg / ml prepared at a volume ratio of 1:1 In the mixed solution of copper nanowires and 0.2mg / ml graphene, after stirring for 1h, remove the sponge and transfer it to an oven for continuous rotation, so that the silver nanowires and graphene are evenly coated on the surface of the sponge; finally, The above-mentioned coated sponge is coated with a layer of MnO on its surface by conventional soaking and electrodeposition methods respectively. 2 and Zn, after the experiment is completed, the obtained coating is dried and then transferred to a vacuum oven for PDMS permeation encapsulation to obtain the final product. After performance testing, it was found that the battery capacity was stable at 94.1% of the initial capacity when the deformation amount reached 100% at a tensile rate of 0.1mm...
Embodiment 3
[0025] Take some commercial sponges, first clean them with deionized water, and then dry them in an oven to obtain sponges with a clean surface; then put them into the prepared PDDA solution with a concentration of 0.5% for stirring, and stir for 60 minutes Finally, take out the sponge and turn it over in the oven so that PDDA is evenly coated on the surface of the sponge. Put the coated sponge into silver nanowires with a concentration of 5 mg / ml and 0.5 mg / ml prepared at a volume ratio of 1:1. mg / ml of graphene mixed solution, after stirring for 4 hours, remove the sponge and transfer it to the oven for continuous rotation, so that the silver nanowires and graphene are uniformly coated on the surface of the sponge; finally, the coated The sponge was coated with a layer of MnO on its surface by conventional soaking and electrodeposition methods respectively. 2 and Zn, after the experiment is completed, the obtained coating is dried and then transferred to a vacuum oven for PD...
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