Abstract: Organic electrolyte solutions and lithium batteries using the same are provided. The organic electrolyte solutions use a silane compound that prevents crack formation caused by volumetric changes in the anode active material during battery charging/discharging. This improves charge/discharge characteristics, thereby also improving stability, reliability, and charge/discharge efficiency of the battery.

Abstract: An organic electrolyte solution and a lithium battery using the same are provided. The organic electrolyte solution uses a monomer compound which can be electrografted, and which prevents crack formation caused by volumetric changes in the anode active material during battery charging/discharging. This improves charge/discharge characteristics, thereby improving the stability, reliability, and charge/discharge efficiency of the battery.

Abstract: Organic electrolytic solutions and lithium batteries using the organic electrolytic solutions are provided. One organic electrolytic solution includes a lithium salt, a mixed organic solvent consisting of a high-dielectric constant solvent and a low-boiling point solvent, and a compound represented by Formula 1 or 2 as an additive. The organic electrolytic solution and the lithium battery using the organic electrolytic solution may inhibit the reductive cleavage reaction of a polar solvent, thereby increasing capacity retention of the battery, and improving charge-discharge efficiency and battery lifetime.

Abstract: A solid electrolyte including a composition represented by Formula 1 below is provided: aLi2O-bB2O3-cM-dX (1) wherein M is at least one selected from the group consisting of TiO2, V2O5, WO3, and Ta2O5; X is at least one selected from LiCl and Li2SO4; 0.4<a<0.55; 0.4<b<0.55; 0.02<c<0.05; a+b+c=1, and 0?d<0.2. A method for preparing the solid electrolyte and a battery using the solid electrolyte are also provided. The solid electrolyte exhibits high ionic conductivity. Lithium and thin film batteries using the solid electrolyte are improved in charge/discharge rate, power output, and cycle life.

Abstract: An anode active material is provided. The anode active material includes a silicon thin film containing crystalline silicon having a Raman shift in a Raman spectrum ranging from about 490 to about 500 cm?1 and a full width at half maximum (FWHM) ranging from about 10 to about 30 cm?1. The volume of the anode active material does not change significantly during charging and discharging. Thus, a lithium battery employing the anode active material has an excellent capacity retention rate and a longer cycle lifetime.

Abstract: A non-aqueous electrolyte for stabilizing the active surface of a lithium anode and a lithium battery using the non-aqueous electrolyte are provided. The non-aqueous electrolyte contains an organic solvent and a halogenated organic metal salt of formula (1) below: where M is one of Si, Sn, Pb, and Ge; R1 is one of F, Cl, Br, and I; R2 is a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted phenyl group; and R3 and R4 are independently selected from the group consisting of F, Cl, Br, I, a substituted or unsubstituted C1-C20 alkyl group, and a substituted or unsubstituted phenyl group.

Abstract: A solid electrolyte, a method of manufacturing the same, and a lithium battery and a thin-film battery that employ the solid electrolyte are provided. The solid electrolyte contains nitrogen to enhance the ionic conductivity and electrochemical stability of batteries.

Abstract: An organic electrolytic solution is provided. The electrolytic solution comprises a lithium salt, an organic solvent comprising a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant having a hydrophilic segment with two ends, each end being connected to a hydrophobic segment. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode of the lithium battery to thereby suppress a side reaction on the surface of the anode. This enhances charge/discharge efficiency, lifespan and reliability of the battery.

Abstract: Provided is an organic electrolytic solution including a lithium salt and an organic solvent containing an alkoxy-containing compound such as 1,1,3-trimethoxypropane. When polyglyme and an organic compound having dioxolane moiety are further added into the organic electrolytic solution, a lithium metal stabilizing effect and the ionic conductivity of lithium ions are enhanced, and thus, the charging/discharging efficiency of lithium is greatly improved. Such an organic electrolytic solution can be effectively used for any kind of lithium batteries and lithium sulfur batteries, even whose which use a lithium metal anode.

Abstract: An organic electrolytic solution includes a lithium salt; an organic solvent including a high dielectric constant solvent and a low boiling point solvent; and an additive of a hetero ring compound including a cyano group and an alkenyl group as substituents. The organic electrolytic solution and the lithium battery employing the organic electrolytic solution suppress the reduction decomposition of a polar solvent to improve the capacity retention ratio of the battery. Thus, the charge/discharge efficiency and lifespan of the battery can be improved.

Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and an acetate derivative including two or more substituted silyl groups as an additive. The organic electrolytic solution and the lithium battery employing the same relatively suppress a reduction decomposition of a polar solvent and decrease irreversible capacity in the first cycle. Thus, the charge/discharge efficiency, lifespan, and reliability of the battery can be improved.

Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and an additive comprising a crotonate derivative including a substituted silyl group. The organic electrolytic solution and the lithium battery employing such an electrolytic solution suppress a reduction decomposition of a polar solvent and decrease irreversible capacity in the first cycle. Thus, the charge/discharge efficiency, lifespan, and reliability of the battery can be improved.

Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes a lithium salt, an organic solvent containing a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant including a hydrophobic portion having an aromatic group. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode, thereby suppressing side reactions on the anode surface and improving discharge capacity, charge/discharge efficiency, lifespan, and battery reliability.

Abstract: The present invention is related to an organic electrolytic solution comprising a halogenated benzene compound, such as 1-iodobenzene or 1-chlorobenzene. Specifically, the halogenated benzene compound has a high polarity and is capable of reducing the reactivity of the lithium metal surface. Due to these characteristics of the halogenated benzene compound, the lithium ions are unlikely to bond with the sulfide anions. Therefore, the solubility of the sulfide within the electrolyte is increased, thereby improving the charge/discharge efficiency characteristics of the lithium ions and the lifespan of batteries. Moreover, the organic electrolytic solution of the present invention may be used in any battery type where an anode is composed of lithium metal, and in particular, lithium sulfur batteries.

Abstract: A lithium sulfur battery including: a cathode that contains sulfur or a sulfur compound as an active material: an anode; a separator interposed between the cathode and the anode; and an organic electrolytic solution that contains a lithium salt, dialkoxypropane having the formula of (CH2)3R1R2, and an organic solvent are provided. The organic electrolytic solution, which contains dialkoxypropane, is less reactive with lithium of the anode and improves the conductivity of lithium ions and the discharging capacity and cycle properties of lithium sulfur batteries.

Abstract: A solid electrolyte including a composition represented by Formula 1 below is provided: aLi2O-bB2O3-cM-dX (1) wherein M is at least one selected from the group consisting of TiO2, V2O5, WO3, and Ta2O5; X is at least one selected from LiCl and Li2SO4; 0.4<a<0.55; 0.4<b<0.55; 0.02<c<0.05; a+b+c=1, and 0≦d<0.2. A method for preparing the solid electrolyte and a battery using the solid electrolyte are also provided. The solid electrolyte exhibits high ionic conductivity. Lithium and thin film batteries using the solid electrolyte are improved in charge/discharge rate, power output, and cycle life.

Abstract: A solid electrolyte, a method of manufacturing the same, and a lithium battery and a thin-film battery that employ the solid electrolyte are provided. The solid electrolyte contains nitrogen to enhance the ionic conductivity and electrochemical stability of batteries.

Abstract: A non-aqueous electrolyte for stabilizing the active surface of a lithium anode and a lithium battery using the non-aqueous electrolyte are provided.

Abstract: Provided is an organic electrolytic solution including a lithium salt and an organic solvent containing an alkoxy-containing compound such as 1,1,3-trimethoxypropane. When polyglyme and an organic compound having dioxolane moiety are further added into the organic electrolytic solution, a lithium metal stabilizing effect and the ionic conductivity of lithium ions are enhanced, and thus, the charging/discharging efficiency of lithium is greatly improved. Such an organic electrolytic solution can be effectively used for any kind of lithium batteries and lithium sulfur batteries, even whose which use a lithium metal anode.

Abstract: A method for manufacturing a minute silicon mechanical device, which includes the steps of forming a diffusion region by doping a predetermined portion of a silicon substrate with an impurity of high density; forming an epitaxial layer over the silicon substrate including the diffusion region and forming an oxide layer over the epitaxial layer; forming an ohmic contact layer at the lower surface of the silicon substrate; patterning the oxide layer to have a striped configuration at that portion of the oxide layer corresponding to the predetermined portion of the diffusion region, thus exposing a predetermined portion of the epitaxial layer; forming a plurality of beams having a striped configuration by etching the exposed portion of the epitaxial layer, using the oxide layer as a mask and then removing the oxide layer; and removing the diffusion region below the plurality of beams.