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BINDER FOR PREPARING POSITIVE ELECTRODE FOR LITHIUM-SULFUR SECONDARY BATTERY, AND METHOD FOR PREPARING POSITIVE ELECTRODE USING SAME
BINDER FOR PREPARING POSITIVE ELECTRODE FOR LITHIUM-SULFUR SECONDARY BATTERY, AND METHOD FOR PREPARING POSITIVE ELECTRODE USING SAME
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机译:用于制备锂硫二次电池正极的粘结剂和使用该粘结剂制备正极的方法
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摘要
A binder for preparing a positive electrode of a lithium-sulfur secondary battery, a composition including the binder, a positive electrode including the composition and a lithium-sulfur secondary battery including the positive electrode. The binder includes an acrylic polymer, and the acrylic polymer includes a unit formed from a hydroxyphenyl-based monomer or a disulfide-based monomer. The acrylic polymer may include 1 to 20 wt. % of units formed from the hydroxyphenyl-based monomer. The acrylic polymer may include 1 to 20 wt. % of units formed from the disulfide-based monomer. Such a battery has increased long-term stability due to suppression of leaching of the sulfur-based materials by absorption of lithium polysulfides.
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