A gel electrolyte and lithium-sulfur secondary battery
A technology of gel electrolyte and liquid electrolyte, applied in the field of electrochemistry, can solve the problems of lithium-sulfur secondary batteries that need to be improved, and achieve the effects of improving charge and discharge efficiency, high capacity retention rate, and increasing the degree of polymerization
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Embodiment 1
[0054] After preparing liquid electrolyte E1, add 1% of 2-[[2,2-bis[[(1-oxo-2-propenyl]methyl]butoxy]methyl]-2-ethyl- 1,3-propanediyl-2-acrylate (CAS number: 94108-97-1) and 0.05% peroxybenzoic acid initiator to obtain gel electrolyte ES1;
[0055] Injection and cell molding: inject the above-mentioned gel electrolyte ES1 into the baked cell (the preparation of the cell is the same as in Comparative Example 1), and let it stand until the electrolyte soaks the entire diaphragm. After standing at a high temperature of 80°C for 4 hours, then Processes such as chemical formation, shaping, and degassing were carried out to finally obtain the lithium-sulfur battery example BS1.
Embodiment 2
[0057] After preparing according to liquid electrolyte E2, add 1% of 2-[[2,2-bis[[(1-oxo-2-propenyl]methyl]butoxy]methyl]-2-ethyl- 1,3-propanediyl-2-acrylate (CAS No.: 94108-97-1) and 0.05% peroxybenzoic acid initiator to obtain gel electrolyte ES2;
[0058] Liquid injection and cell molding: inject the above-mentioned electrolyte ES2 into the baked cell (the preparation of the cell is the same as that of Comparative Example 1), let it stand until the electrolyte soaks the entire diaphragm, and leave it at a high temperature of 65°C for 6 hours, then proceed to chemical formation , shaping, degassing and other processes to finally obtain the lithium-sulfur battery embodiment BS2.
Embodiment 3
[0060] After preparing liquid electrolyte E1, add 2% of 2-[[2,2-bis[[(1-oxo-2-propenyl]methyl]butoxy]methyl]-2-ethyl- 1,3-Propanediyl-2-acrylate (CAS No.: 94108-97-1) and 0.08% AIBN to obtain gel electrolyte ES3;
[0061] Liquid injection and cell molding: inject the above-mentioned electrolyte ES3 into the baked cell (the preparation of the cell is the same as that of Comparative Example 1), let it stand until the electrolyte soaks the entire diaphragm, and leave it at a high temperature of 80°C for 4 hours, and then perform the formation , shaping, degassing and other processes to finally obtain the lithium-sulfur battery embodiment BS3.
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