Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same
An electrolyte and lithium battery technology, applied in secondary batteries, battery pack components, circuits, etc., can solve problems such as lack of ionic conductivity
Inactive Publication Date: 2005-01-19
SAMSUNG SDI CO LTD
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Problems solved by technology
However, this silicone oil does not have sufficient ionic conductivity for use in electrolytes for rechargeable lithium batteries
Method used
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Embodiment 1
[0156] 10% by volume of oil 1 shown in Formula 7 was added to the non-aqueous electrolyte of Comparative Example 1 to prepare a non-aqueous electrolyte.
Embodiment 2
[0158] 10% by volume of the oil 2 represented by Formula 8 was added to the non-aqueous electrolyte of Comparative Example 1 to prepare a non-aqueous electrolyte.
Embodiment 3
[0160] 0.2 wt% of PAA and 1 wt% of TAZO were added to the non-aqueous electrolyte of Example 1 to prepare a non-aqueous electrolyte.
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Abstract
Disclosed is a non-aqueous electrolyte for a rechargeable lithium battery including a polyether-modified silicon oil in which a polyether chain is bonded to a terminal end of a linear polysiloxane, a cyclic carbonate, and a lithium salt.
Description
[0001] Cross References to Related Applications [0002] This application claims Japanese Application Nos. 2003-003047 and 2003-363591 filed with the Japan Patent Office on Jan. 9, 2003 and Oct. 23, 2003 and Korean Application No. 2003 filed with the Korean Intellectual Property Office on Dec. 23, 2003 Priority of -97895, the entire disclosure of which is hereby incorporated by reference. field of invention [0003] The present invention relates to an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery containing the electrolyte, and more particularly, to an electrolyte for a rechargeable lithium battery having good thermal safety and ionic conductivity and rechargeable lithium batteries containing this electrolyte. Background of the invention [0004] Usually, the organic solvent in the electrolyte uses one selected from cyclic esters such as ethylene carbonate or propylene carbonate, linear esters such as dimethyl carbonate or propionate, or ...
Claims
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IPC IPC(8): H01M2/16H01M10/0525H01M10/0567H01M10/0569H01M10/36
CPCH01M10/0567H01M10/0525H01M10/0569Y02E60/10
Inventor 郑喆洙山口滝太郎清水竜一
Owner SAMSUNG SDI CO LTD
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