Abstract: Provided is an electrolyte for a secondary lithium battery, comprising a non-aqueous organic solvent, a lithium salt, and an additive, the additive including a compound represented by Chemical Formula 1. The details of Chemical Formula 1 are as described in the specification.

Abstract: A rechargeable lithium battery includes an electrolyte solution including a non- aqueous organic solvent and a lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, where the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate, based on the total weight of the non-aqueous organic solvent, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided is a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, the additive includes one or more lithium compound selected from lithium tetrafluoro borate (LiBF4), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiPO2F2), and lithium bisoxalato borate (LiB(C2O4)2: LiBOB), and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Disclosed are a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes ethylene carbonate in an amount of less than about 5 wt %, and the additive includes a compound represented by Chemical Formula 1, and the positive electrode active material is represented by Chemical Formula 2. Chemical Formula 1 and Chemical Formula 2 are the same as defined in the specification.

Abstract: A rechargeable lithium battery includes an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, where the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate, based on the total weight of the non-aqueous organic solvent, the additive includes vinylene carbonate (VC), vinylethylene carbonate (VEC), or a mixture thereof, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided is a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a first lithium salt, and an imide-based lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent contains less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided are a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery including the same, and the non-aqueous electrolyte for the lithium secondary battery including a non-aqueous organic solvent, a lithium salt, and an additive represented by Chemical Formula 1.

Abstract: An additive for a lithium secondary battery includes a compound represented by Formula 1 below, where R1 to R4 are as defined in the disclosure. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive. A lithium secondary battery includes: a cathode; an anode; and the electrolyte.

Abstract: An additive for an electrolyte, an electrolyte including the additive for a rechargeable lithium battery, and a rechargeable lithium battery including the electrolyte are provided. The additive may be represented by Chemical Formula 1, where at least one selected from A and B is a group represented by Chemical Formula A.

Abstract: A microphone/speaker-contained wireless remote control system for an Internet device, comprising a system body and a remote controller, each of which includes a circuitry for performing a voice compression operation and modulating an analog audio signal into a digital signal. The remote controller further includes a speaker for transferring an audio signal from the Internet device to the user, and a microphone for receiving a user's voice. In the case where a singing room function is selected, the user's voice received by the microphone is processed in a digital manner. Radio frequency signals are transmitted and received between the remote controller and Internet device through antennas.