Abstract: The present invention relates to a positive electrode active material containing a spinel composite solid solution oxide, a method for manufacturing same, and a lithium secondary battery including the same. The spinel composite solid solution oxide contains cubic (P4332) and face-centered cubic (Fd-3m) in an optimized solid solution ratio in the crystal, and a low content of lithium nickel oxide (LizNi1?zO) is combined. A positive electrode active material containing the spinel composite solid solution oxide provides excellent output characteristics while having stable cycle-life characteristics according to the type and content of doping elements replacing transition metals, the synthesis temperature, and the amount of impurities generated.

Abstract: Provided are a binder resin for an electrode of a lithium secondary battery containing a solvent-soluble polyimide having a repeating unit represented by the following Formula [I], and a method of producing the binder resin for an electrode. (In the formula, Z represents an aromatic or alicyclic tetracarboxylic dianhydride residue, and Ar is an aromatic diamine residue having a carboxyl group and an aromatic diamine residue having an aromatic ether bond, or an aromatic diamine residue having a phenylindan structure).

Abstract: Electrode terminals are provided. The electrode terminal includes a copper substrate and a metal layer covering at least one surface of the copper substrate, wherein the metal layer includes greater than or equal to about 10 wt % and less than or equal to about 80 wt % of tungsten (W), and an additional metal comprising nickel (Ni), silver (Ag), gold (Au), platinum (Pt), zinc (Zn), iron (Fe), lead (Pb), tin (Sn), molybdenum (Mo), beryllium (Be), rhodium (Rh), iridium (Ir), or a combination thereof. An electro-chemical device and an electro-chemical device module including the same are also provided.

Abstract: Provided are a binder resin for an electrode of a lithium secondary battery containing a solvent-soluble polyimide having a repeating unit represented by the following Formula [I], and a method of producing the binder resin for an electrode.

Abstract: Electrode terminals are provided. The electrode terminal includes a copper substrate and a metal layer covering at least one surface of the copper substrate, wherein the metal layer includes greater than or equal to about 10 wt % and less than or equal to about 80 wt % of tungsten (W), and an additional metal comprising nickel (Ni), silver (Ag), gold (Au), platinum (Pt), zinc (Zn), iron (Fe), lead (Pb), tin (Sn), molybdenum (Mo), beryllium (Be), rhodium (Rh), iridium (Ir), or a combination thereof. An electro-chemical device and an electro-chemical device module including the same are also provided.

Abstract: Embodiments of the present invention provide an electrochemical cell including a stack of electrode layers and separator layers. The electrode layers include anode layers and cathode layers disposed in an alternating manner and separated by the separator layers. The two outer electrode layers of the stack are of the same type and are coated with an active material on an inward-facing surface only. The electrochemical cell may include two or more insulating layers disposed at the two ends of the electrode stack, and a pouch enclosing the electrode stack and the insulating layers.

Abstract: An electrode active material composition containing a pyrolytic plasticizer, a polymer electrolytic matrix composition and a preparation method of a lithium ion polymer battery using the same are provided. Since a separate plasticizer extraction step using an organic solvent is not necessary, the preparation cost is reduced and the preparation process can be kept clean. In particular, since a uniform porosity plate can be fabricated after removing the plasticizer, a lithium ion polymer battery with improved high-rate charge and discharge characteristics can be prepared.

Abstract: A secondary battery having an improved sealing structure between electrode tabs acting as terminals of the battery, and a dielectric package, which is capable of preventing leakage of an organic electrolyte. The secondary battery includes a battery body having a positive electrode, a negative electrode and a separator which are stacked, and electrode tabs for inducing current generated therein to the outside; a dielectric package having upper and lower dielectric packages, for enclosing the battery body by sealing edge portions of the upper and lower dielectric packages while the electrode tabs are partially exposed to the outside; and sealing materials including sidearms, coated on predetermined portions of the electrode tabs by a predetermined width, for preventing leakage of an organic liquid electrolyte while being interposed and fused between the edge portions of the upper and lower dielectric packages.

Abstract: An improved current collector for use with lithium ion batteries includes an aluminum grid of the type used for making conventional current collectors that is plated with a layer of zinc, the outermost portion of which is oxidized to zinc oxide. The current collector is made by first cleaning an aluminum grid in an aqueous basic solution to remove its outer layer of alumina. The cleaned aluminum grid is then plated with zinc by contact with an aqueous solution of zinc oxide. The plated aluminum grid is rinsed and dried in air to oxidize the outer surface of the zinc and form an outer layer of zinc oxide. The resulting zinc-plated current collector can be made into a battery with a higher conductivity at the interface between the current collector and the electrode active materials than a battery made with a conventional aluminum current collector. It also has a rough outer surface which improves its adhesion to the polymeric layers used in constructing a plastic lithium ion battery.