Abstract:
A rechargeable battery including: an electrode assembly; and a case including a receiving portion to house the electrode assembly, a junction portion disposed around the receiving portion, formed by bonded films of the case, and gas outlet disposed in the junction portion. The gas outlet includes a first block portion, a second block portion, and a buffering space disposed between the first and second block portions.
Abstract:
A negative active material for a rechargeable lithium battery that includes a core including a compound represented by the following Chemical Formula 1, and a carbon layer disposed on the core and including low crystalline carbon. LixTiyOz [Chemical Formula 1] where 0.1≦x≦4, 1≦y≦5, and 2≦z≦12.
Abstract:
An electrode for a rechargeable lithium battery includes a current collector; a first active material layer on the current collector, the first active material including a first binder, an active material, and a conductive material; and a second active material layer on the first active material layer, the second active material including a second binder including a copolymer, an active material, and a conductive material. A method of preparing the electrode is also provided. A rechargeable lithium battery includes the electrode.
Abstract:
A fuel cell includes: a fuel cell body; and a fuel supplier supplying fuel to the fuel cell body, wherein the fuel cell body includes: a membrane electrode assembly including an ion exchange membrane, an anode catalyst layer positioned at one surface of the ion exchange membrane, an anode gas diffusion layer positioned at one surface of the anode catalyst layer, and a cathode catalyst layer positioned at other surface of the ion exchange membrane; and a fuel flow field positioned at the one surface of the anode gas diffusion layer and supplying the fuel to the anode catalyst layer through the anode diffusion layer.
Abstract:
An electrode assembly, a rechargeable battery including the same, and a method of manufacturing an electrode thereof, the electrode assembly including a first electrode, the first electrode including a mesh-type first electrode current collector having a plurality of pores, and a first electrode active material layer adhered to the first electrode current collector, wherein an edge active material layer protrudes from a side of the first current collector; a second electrode including a second electrode current collector, and a second electrode active material layer adhered to the second electrode current collector; and a separator interposed between the first and second electrodes.
Abstract:
A rechargeable battery that can improve heat dissipating characteristics is provided. The rechargeable battery includes: an electrode group including a positive electrode; an electrode group that has at least one terminal; a case that defines a recess that receives the electrode group wherein the case includes an opening that provides access to the recess; a film cover that extends over the opening so as to secure the electrode group within the recess of the case; and a heat dissipating member positioned on the case so as extend outward from the case to dissipate heat from the recess containing the electrode group. Multiple batteries can be assembled into modules where the batteries are stacked so that the film covers are protected from external impact.
Abstract:
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.
Abstract translation: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。
Abstract:
A negative active material for a rechargeable lithium battery that includes a core including a compound represented by the following Chemical Formula 1, and a carbon layer disposed on the core and including low crystalline carbon. LixTiyOz [Chemical Formula 1] where 0.1≦x≦4, 1≦y≦5, and 2≦z≦12.
Abstract:
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.
Abstract:
A polymer composition for a rechargeable lithium battery including a polymer of a first monomer selected from methylmethacrylate (MMA), acrylonitrile (AN), or a combination thereof, and a second monomer of ethylene oxide (EO), as well as a lithium salt.