摘要:
Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector; and a positive active material layer including an additive which is LixV2O5 (1
摘要翻译:公开了一种用于可再充电锂电池的正电极和包括其的可再充电锂电池,正电极包括集电器; 和包含Li x V 2 O 5(1
摘要:
A positive electrode for a rechargeable lithium battery capable of providing a high voltage and a high voltage rechargeable lithium battery including the same, wherein the positive electrode includes a positive active material and a capacitor-reactive carbonaceous material having a specific surface area at or between 10 m2/g and 100 m2/g.
摘要:
A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (Li4Ti5O12) having a tap density of about 1.2 g/cc to 2.2 g/cc. The lithium titanium oxide is prepared by a mechano-chemical treatment and a heat treatment at a low temperature of about 650° C. to 775° C. According to the present invention, lithium titanium oxide having high crystallinity and tap density can be prepared through a simple and low-cost solid-phase method, e.g., a mechano-chemical treatment, and thus an electrode with excellent electrochemical reactivity and high energy density per volume can be fabricated.
摘要翻译:用于可再充电锂电池的负极活性材料,制备负极活性材料的方法和包含负极活性材料的可再充电锂电池。 用于可再充电锂电池的负极活性材料包括具有约1.2g / cc至2.2g / cc的振实密度的锂二氧化钛(Li 4 Ti 5 O 12)。 锂钛氧化物通过机械化学处理和在约650℃至775℃的低温下进行热处理制备。根据本发明,可以通过以下方法制备具有高结晶度和振实密度的二氧化钛钛 可以制造简单且低成本的固相方法,例如机械化学处理,因此可以制造具有优异电化学反应性和高体积能量密度的电极。
摘要:
An electrolyte for a rechargeable lithium battery is provided. The electrolyte includes a non-aqueous organic solvent and a lithium salt. The non aqueous organic solvent includes cyclic carbonate such as ethylene carbonate and propylene carbonate, chain carbonate such as dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate and methyl propyl carbonate, and alkyl acetate such as n-methyl acetate, n-ethyl acetate and n-propyl acetate. The electrolyte can be used in a rechargeable lithium battery to provide good low temperature characteristics and safety.
摘要:
An active material for a rechargeable lithium battery and a rechargeable battery, the active material including an active material core; and a thin film graphite layer on the core.
摘要:
A crystalline carbon material with controlled interlayer spacing and a method of manufacturing the crystalline carbon material are disclosed. The crystalline carbon material has peaks of a (002) plane at 2θ=23°±5.0° and 2θ=26.5°±1.0° when X-ray diffraction is measured using a CuKα ray. The peak height at 2θ=23°±5.0° is higher than the one at 2θ=26.5°±1.0°.
摘要:
A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (Li4Ti5O12) having a tap density of about 1.2 g/cc to 2.2 g/cc. The lithium titanium oxide is prepared by a mechano-chemical treatment and a heat treatment at a low temperature of about 650° C. to 775° C. According to the present invention, lithium titanium oxide having high crystallinity and tap density can be prepared through a simple and low-cost solid-phase method, e.g., a mechano-chemical treatment, and thus an electrode with excellent electrochemical reactivity and high energy density per volume can be fabricated.
摘要翻译:用于可再充电锂电池的负极活性材料,制备负极活性材料的方法和包含负极活性材料的可再充电锂电池。 用于可再充电锂电池的负极活性材料包括具有约1.2g / cc至2.2g / cc的振实密度的锂二氧化钛(Li 4 Ti 5 O 12)。 锂钛氧化物通过机械化学处理和在约650℃至775℃的低温下的热处理来制备。根据本发明,可以通过以下方式制备具有高结晶度和振实密度的二氧化钛钛 可以制造简单且低成本的固相方法,例如机械化学处理,因此可以制造具有优异电化学反应性和高体积能量密度的电极。
摘要:
Disclosed are a positive active material composition for an electrochemical device, a positive electrode, and an electrochemical device including the same. The positive active material composition includes: a carbon-based additive including a hydroxyl group (—OH) and an enol group (—C═C—OH) on the surface, having a peak area ratio (OH/C═COH) of a hydroxyl group peak area and an enol group peak area of an infrared spectroscopy (FT-IR) spectrum ranging from about 0.5 to about 10, having a specific surface area of about 50 m2/g to about 3000 m2/g, and having an oxygen-containing heterogeneous element in a content of less than about 15 wt %; a positive active material; a conductive material; and a binder.
摘要:
A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material has a composite of an active material and crystalline carbon. The active material includes a core and a carbon coating layer formed on the core and including amorphous carbon. The core includes a compound represented by a Chemical Formula LixTiyO4, wherein 0.6≦x≦2.5, and 1.2≦y≦2.3.
摘要:
Lithium secondary batteries having polymer electrolytes are provided. A lithium battery includes a positive electrode including a positive active material capable of intercalating and deintercalating lithium ions, a negative electrode including a negative active material capable of intercalating and deintercalating lithium ions, and a polymer electrolyte. The polymer electrolyte includes a polymer, a non-aqueous organic solvent, and a lithium salt. The polymer electrolyte has a shear strength relative to the positive electrode of about 0.7 N/mm or greater.