Abstract: A polymer electrolyte includes a polymer matrix including a polymer having a repeating unit represented by the formula and an ionic liquid. R1 to R3 are each one of a substituted or unsubstituted C1-C12 alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or combinations thereof. Each R4 is one of hydrogen, a halogen group, a nitrile group, a nitro group, an amine group, a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C1-C10 alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted C5-C14 heteroaryl group, or combinations thereof. Substituents of R1 to R4 are each one of a halogen group, a cyano group, a nitro group, a C1-C8 alkyl group, or combinations thereof, x is an integer of 1 to 8, and n is an integer of 60 to 3200.

Abstract: The present disclosure relates to an ion gel having superior ion conductivity and mechanical strength, a polymer electrolyte including the same, and a manufacturing method thereof. The method of manufacturing the ion gel is capable of simply and effectively manufacturing a polymer matrix through a one-pot reaction, thus exhibiting simple processing steps to thereby manifest excellent processing efficiency and generate economic benefits. Moreover, the polymer electrolyte including the ion gel can exhibit superior ion conductivity and mechanical strength despite the low glass transition temperature (Tg) of the monomer contained in the polymer matrix.

Abstract: A battery case includes an upper plate portion and a lower plate portion that are spaced apart from each other in vertical direction to form an inner space therebetween. Battery cells are stacked in the inner space in the vertical direction and a pressing portion is disposed in a first space between the upper plate portion and an uppermost one of the battery cells. The pressing portion presses the stacked battery cells downwards from above due to gravity. A damping portion is disposed in a second space between the upper plate portion and the upper surface of the pressing portion. The upper end of the damping portion is supported by the upper plate portion and the lower end of the damping portion supports the pressing portion.

Abstract: Disclosed are an electrolyte membrane for a lithium air battery having good durability, a method of manufacturing the same, and a lithium air battery including the same. The electrolyte membrane for a lithium air battery may include a reinforced membrane and an electrolyte solution and is thus nonvolatile and capable of ensuring sufficient physical strength.

Abstract: A polymer electrolyte includes a polymer matrix including a polymer having a repeating unit represented by the formula and an ionic liquid. R1 to R3 are each one of a substituted or unsubstituted C1-C12 alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or combinations thereof. Each R4 is one of hydrogen, a halogen group, a nitrile group, a nitro group, an amine group, a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C1-C10 alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted C5-C14 heteroaryl group, or combinations thereof. Substituents of R1 to R4 are each one of a halogen group, a cyano group, a nitro group, a C1-C8 alkyl group, or combinations thereof, x is an integer of 1 to 8, and n is an integer of 60 to 3200.

Abstract: A polymer electrolyte includes an ionic liquid and a polymer matrix including a copolymer having a first repeating unit represented by Chemical Formula 1 and a second repeating unit represented by Chemical Formula 2 below:

Abstract: A sulfide-based solid electrolyte contains a nickel (Ni) element and a halogen element. For example, a sulfide-based solid electrolyte can include, with respect to 100 parts by mole of a mixture of lithium sulfide (Li2S) and diphosphorus pentasulfide (P2S5), 5 parts by mole to 20 parts by mole of nickel sulfide (Ni3S2), and 5 parts by mole to 40 parts by mole of lithium halide.

Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.

Abstract: A sulfide-based solid electrolyte contains a nickel (Ni) element and a halogen element. For example, a sulfide-based solid electrolyte can include, with respect to 100 parts by mole of a mixture of lithium sulfide (Li2S) and diphosphorus pentasulfide (P2S5), 5 parts by mole to 20 parts by mole of nickel sulfide (Ni3S2), and 5 parts by mole to 40 parts by mole of lithium halide.

Abstract: The present disclosure relates to an ion gel having superior ion conductivity and mechanical strength, a polymer electrolyte including the same, and a manufacturing method thereof. The method of manufacturing the ion gel is capable of simply and effectively manufacturing a polymer matrix through a one-pot reaction, thus exhibiting simple processing steps to thereby manifest excellent processing efficiency and generate economic benefits. Moreover, the polymer electrolyte including the ion gel can exhibit superior ion conductivity and mechanical strength despite the low glass transition temperature (Tg) of the monomer contained in the polymer matrix.

Abstract: Disclosed are an electrolyte membrane for a lithium air battery having good durability, a method of manufacturing the same, and a lithium air battery including the same. THe electrolyte membrane for a lithium air battery may include a reinforced membrane and an electrolyte solution and is thus nonvolatile and capable of ensuring sufficient physical strength.

Abstract: A lithium air battery may include an electrolyte with a donor number of 10 to 40; and a quinone-based liquid catalyst which added to the electrolyte to induce a discharge in the solution.

Abstract: Disclosed is a lithium ion-conductive sulfide-based solid electrolyte which includes nickel sulfide and, accordingly, the solid electrolyte can obtain a novel structure and performance. More particularly, the sulfide-based solid electrolyte includes lithium sulfide (Li2S), diphosphorus pentasulfide (P2S5), and nickel sulfide (Ni3S2) in a specific ratio by mol % and exhibits a novel crystal structure due to nickel (Ni). Accordingly, the sulfide-based solid electrolyte has greater lithium ion conductivity than an conventional sulfide-based solid electrolyte and a stable crystal structure.

Abstract: A method of manufacturing a sulfide-based solid electrolyte through a wet process is provided. The method includes preparing a slurry by adding a solvent to a mixture including lithium sulfide and a sulfide of a group 14 or group 15 element and amorphizing the mixture by milling the slurry. The slurry is dried in order to remove the solvent. The dried mixture is crystallized by heat-treating to form the sulfide-based solid electrolyte.

Abstract: Provided herein is an anode for a lithium air battery with a long lifetime and high lithium ion conductivity and a method for preparing thereof. The anode includes a lithium metal and a protective layer disposed on one surface of the lithium metal, in which the protective layer includes an inorganic material-based solid electrolyte powder dispersed in a polymer matrix.

Abstract: Disclosed herein is a sodium-air battery comprising a high-concentration electrolyte which can increase the chemical stability of the battery material and the discharge product in the sodium-air battery. The use of a liquid electrolyte comprising an ether-based solvent and a sodium salt at a concentration of 4 M or less but exceeding 0.5 M can significantly increase the chemical stability of the sodium-air battery and can suppress the formation of dendrites on the anode.

Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.

Abstract: A lithium air battery may include an electrolyte with a donor number of 10 to 40; and a quinone-based liquid catalyst which added to the electrolyte to induce a discharge in the solution.

Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.

Abstract: A sulfide-based solid electrolyte contains a nickel (Ni) element and a halogen element. For example, a sulfide-based solid electrolyte can include, with respect to 100 parts by mole of a mixture of lithium sulfide (Li2S) and diphosphorus pentasulfide (P2S5), 5 parts by mole to 20 parts by mole of nickel sulfide (Ni3S2), and 5 parts by mole to 40 parts by mole of lithium halide.