Nonaqueous Electrolyte for Secondary Battery and Secondary Battery Comprising the Same
The present invention provides a non-aqueous electrolyte for a secondary battery including lithium salt and a fluorinated solvent of a specific structure, and a secondary battery including the non-aqueous electrolyte. The non-aqueous electrolyte according to the present invention includes fluorinate...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | The present invention provides a non-aqueous electrolyte for a secondary battery including lithium salt and a fluorinated solvent of a specific structure, and a secondary battery including the non-aqueous electrolyte. The non-aqueous electrolyte according to the present invention includes fluorinated ether or ester compounds including a nitrile group of a specific structure as solvents, thereby providing low viscosity, excellent flame retardancy, and excellent battery characteristics while not lacking in solubility in lithium salt.
본 발명은 리튬염 및 특정 구조의 불소화 용제를 포함하는 이차전지용 비수 전해액 및 상기 비수 전해액을 포함하는 이차전지를 제공한다. 본 발명에 따른 비수 전해액은 용제로서 특정 구조의 니트릴기 함유 불소화 에테르 또는 에스테르 화합물을 포함함으로써 저점도이며, 리튬염에 대한 용해도가 부족하지 않으면서도 난연성이 뛰어나고 전지 특성도 우수하다. |
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