Abstract:
리튬 이온의 흡장 및 방출이 가능한 음극, 산소를 양극 활물질로 하는 양극, 및 상기 음극과 양극 사이에 리튬 이온 전도성 고분자 전해질을 포함하고, 상기 양극이 탄소계 물질, 및 금속 또는 준금속 원소의 탄화물을 포함하는 리튬 공기 전지가 제공된다. 상기 리튬 이온 전도성 고분자 전해질은 리튬염 및 친수성 고분자를 포함할 수 있다.
Abstract:
리튬 금속 또는 리튬 합금을 함유하는 보호음극을 포함하는 리튬 전지용 양극이며, 상기 양극은 양극 활물질, 폴리옥소메타레이트(polyoxometalate) 화합물 및 도전제를 함유하는 리튬 전지용 양극을 제공한다. 또한 상기 양극을 이용한 리튬 전지가 제시된다.
Abstract:
Disclosed are a cathode for a lithium air battery and a lithium air battery comprising the same, that include an cathode active material layer including an cathode active material; a first protection layer arranged on one surface facing an anode of the cathode active material layer; and a second protection layer arranged on the first protection layer. The first protection layer includes a liquid electrolyte having a viscosity of 5 cps or less at 20°C. The second protection layer includes an ionic conductive solid electrolyte layer.
Abstract:
PURPOSE: A lithium air battery module recycles evaporated electrolyte, thereby preventing the shortage of electrolyte in a lithium air battery. CONSTITUTION: A lithium air battery module (100) comprises one or more lithium air battery cells (20); an additional electrolyte (150) spaced apart from electrolyte in the lithium air battery cell; and a housing (120) which blocks the lithium air battery cell from outside and has an additional electrolyte and the lithium air battery cell inside. The housing additionally includes an outlet (140) discharges air in the housing; and a correcting unit (180) correcting the additional electrolyte from the air.
Abstract:
PURPOSE: A positive electrode for lithium air battery is provided to provide a lithium air battery of which energy efficiency and capacity are improved by comprising a catalyst of improved stability. CONSTITUTION: A positive electrode(15) comprises a positive electrode active material which is oxygen, and a redox catalyst(17) of the oxygen. The catalyst comprises manganese oxide in which one or more transition metal of zinc, cobalt, iron, copper and nickel is doped. A manufacturing method of the positive electrode comprises: a step of adsorbing the transition metal to the carbonic material by contacting the carbonic material to transition metal salt-saturated alcohol solution; and a step of adsorbing transition metal-doped oxide by contacting the carbonic material to manganese oxide precursor aqueous solution.
Abstract:
PURPOSE: Non-aqueous electrolyte is provided to effectively dissociate reduction reaction product of oxygen formed at discharging a lithium air battery, thereby reducing overvoltage of oxygen generating reaction generated at charging, and improving energy efficiency and capacity of a battery. CONSTITUTION: Non-aqueous electrolyte comprises an oxygen anion-capturing compound. The oxygen anion is originated from lithium oxide. The oxygen anion-capturing compound comprises oxazolinone derivatives in which an electron-withdrawing group is combined to N location. A lithium air battery comprises a negative electrode accepting and emitting lithium ions, a positive electrode arranged to be faced to the negative electrode, using oxygen as positive electrode active material, and the non-aqueous electrolyte between the positive electrode and the negative electrode.