The present invention provides a lithium secondary battery and the preparation thereof, more specifically a lithium secondary battery comprising an electrode assembly having a cathode, an anode, and a separator interposed between the cathode and the anode;...

In general, according to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode containing a lithium nickel cobalt manganese composite oxide, and a negative electrode containing ...

Disclosed herein is a method of manufacturing a battery cell having an electrode assembly of a cathode/separator/anode structure disposed in a battery case made of aluminum or an aluminum alloy together with an electrolyte in a sealed state, the method inc...

Electrochemical storage device (100) comprises an anode chamber (11) filled with an anode material (10), a cathode chamber (21) filled with a cathode material (20) at regular operation, a head part, a base part, which is arranged opposite to the head part,...

Disclosed is a method for manufacturing a battery cell including an electrode assembly and electrolyte provided in a battery case made of a laminate sheet having a resin layer and a metal layer, which includes: (a) mounting the electrode assembly in the ba...

A non-aqueous electrolyte secondary battery (1) is provided. A negative electrode layer in the battery includes a lithium titanium oxide, and has first region(s) (21) and a second region (22) on a surface. The first region(s) (21) is/are surrounded by the ...

It is an object to provide a nonaqueous electrolyte secondary battery whose battery characteristics can be considerably improved by considerably improving the dispersibility of a carbon conductive agent and forming a good conductive network, and a method f...

There is provided a lithium ion secondary battery exhibiting a high capacity retention rate over a long period. There is also provided a method for manufacturing a lithium ion secondary battery including a positive electrode, a negative electrode containin...