Preparation method of porous SiOC ceramic and application thereof in negative electrode material of lithium ion battery
A technology for lithium-ion batteries and negative electrode materials, applied in battery electrodes, ceramic products, applications, etc., can solve problems such as strong corrosion, and achieve the effects of improved performance, good cycle discharge performance, good rate performance and cycle performance
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[0036] Add 2 ml PhTES into 5 ml EtOH and stir, add 0.9 ml deionized water dropwise, then seal and stir for 9-12 h to obtain PhTES sol;
[0037] Weigh 1.5 g, 2.0 g, 2.5 g, 3.0 g of starch and add to 10 mL of H 2 O / EtOH mixed solution (v / v=1:1), then add 0.15 g, 0.20 g, 0.25 g, 0.30 g KH540 respectively, stir for 30 min, then add PhTES sol solution, at 80 o C stirred until dry to obtain a white powder, placed in 100 o After drying in a C oven for 24 h, at 900 o C heat treatment for 2 h. The synthesized samples were numbered, 1-1, 1-2, 1-3, and 1-4 corresponded to SiOC materials synthesized from 1.5 g, 2.0 g, 2.5 g, and 3.0 g starch, respectively.
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