Abstract:
An electrode plate includes an electrode structure, the electrode structure including: a current collector; an electrode active material layer disposed on at least a portion of the current collector; and at least one slit which extends from a first side surface of the electrode structure to a point on a top surface of the electrode structure, wherein the at least one slit extends through the electrode active material layer. Also an electrode assembly and a secondary battery each include the electrode plate.
Abstract:
An electrode assembly including an electrode structure including a first electrode plate and a second electrode plate which are alternately disposed, and a separator film that is disposed between the first electrode plate and the second electrode plate, wherein a surface of the separator film is bonded to the first electrode plate, and a binding member, which rigidly connects at least one selected from the first electrode plate, the second electrode plate, and the separator film.
Abstract:
A cell structure for a secondary battery includes an electrode assembly including a plurality of electrodes, a plurality of electrode tabs extending from the electrodes to an outside of the electrode assembly, and a plurality of lead tabs electrically connected to the electrode tabs and contacting the electrode assembly. In the cell structure, a part of each of the lead tabs is folded, and the electrode tabs are inserted into the folded part of each of the lead tabs.
Abstract:
A stretchable electrode includes: a current collector; and, disposed on a surface of the current collector, a metal layer or an electrode active material layer, wherein the current collector includes a spiral-type coil spring and an elastic polymer, the spiral-type coil spring including a coil spring wound in a spiral pattern around a point, and wherein the elastic polymer is disposed in at least a portion of an inside of the coil spring, in at least a portion of a space between spiral coils of the spiral-type coil spring, or both.
Abstract:
A positive active material including: a core comprising a metal oxide, a non-metal oxide, or a combination thereof capable of intercalation and deintercalation of lithium ions or sodium ions; and a non-conductive carbonaceous film including oxygen on at least one portion of a surface of the core; a lithium battery including the positive active material; and a method of manufacturing the positive active material.
Abstract:
An electrode active material including an ordered mesoporous metal oxide; and at least one conductive carbon material disposed in a pore of the ordered mesoporous metal oxide. Also, an electrode including the electrode active material, and a lithium battery including the electrode.
Abstract:
An electrochemical cell includes: an electrode assembly; and a housing including a first sheet and a second sheet, wherein the first sheet includes a first gas blocking layer, and a first sealing layer, and wherein the second sheet includes a second gas blocking layer and a second sealing layer, wherein the housing defines an accommodation region which accommodates the electrode assembly, which is disposed between the first sheet and the second sheet, and wherein the housing includes a bonded member, wherein the bonded member includes a third gas blocking layer disposed between the first gas blocking layer and the second gas blocking layer, wherein the third gas blocking layer includes a plurality of nanostructures.
Abstract:
A positive active material including: a core comprising a metal oxide, a non-metal oxide, or a combination thereof capable of intercalation and deintercalation of lithium ions or sodium ions; and a non-conductive carbonaceous film including oxygen on at least one portion of a surface of the core; a lithium battery including the positive active material; and a method of manufacturing the positive active material.
Abstract:
A negative active material including: a composite particle including a non-carbonaceous nanoparticle that allows lithiation and delithiation of lithium ions, and a (meth)acryl polymer disposed on a surface of the non-carbonaceous nanoparticle; and a crystalline carbonaceous nanosheet.
Abstract:
A positive electrode active material including a lithium transition metal oxide, wherein when a lithium battery including a positive electrode including the lithium transition metal oxide is analyzed by differential capacity analysis, an irreversible peak is present in a graph of differential capacity versus voltage in a range of about 4.5 volts versus lithium to about 4.8 volts versus lithium during a first charge/discharge cycle.