Disclosed herein is an electrode assembly including 2n (n being a natural number equal to or greater than 1) polar bodies which are stacked.

Disclosed herein is an electrode assembly including 2n (n being a natural number equal to or greater than 1) polar bodies which are stacked.

A secondary battery manufacturing equipment comprises: a main body unit; a pair of electrode plate loading units, disposed in the main body unit to face each other, for supplying electrode plates of different polarities; an electrode plate transfer unit for transferring the electrode plates of different polarities, supplied from the pair of electrode plate loading units, to a set stacking position in an intersecting manner; a stacking unit installed in the main body unit to be disposed at the stacking position for horizontally reciprocating within a first distance range which is set as the electrode plates are transferred in an intersecting manner; a separator supply unit installed in the main body so as to be disposed above the stacking unit for horizontally reciprocating within a second distance range which is set such that a separator is interposed between the electrode plates that are transferred in an intersecting manner.

A secondary battery manufacturing equipment comprises: a main body unit; a pair of electrode plate loading units, disposed in the main body unit to face each other, for supplying electrode plates of different polarities; an electrode plate transfer unit for transferring the electrode plates of different polarities, supplied from the pair of electrode plate loading units, to a set stacking position in an intersecting manner; a stacking unit installed in the main body unit to be disposed at the stacking position for horizontally reciprocating within a first distance range which is set as the electrode plates are transferred in an intersecting manner; a separator supply unit installed in the main body so as to be disposed above the stacking unit for horizontally reciprocating within a second distance range which is set such that a separator is interposed between the electrode plates that are transferred in an intersecting manner.

According to a first embodiment, there is provided a positive electrode including a positive electrode active material-containing layer containing a first active material having a spinel type crystal structure. The positive electrode satisfies the formulas (1) to (3) when combined with a negative electrode including a negative electrode active material-containing layer containing a first active material having a spinel type crystal structure: 0.5≤a1/b1≤1.5 (1); 0.4≤a2/b2≤1.4 (2); and 0.5≤a3/b3≤2.3 (3), where a1 and b1 are a pore volume per 1 g weight, a2 and b2 are a pore specific surface area, and a3 and b3 are a median diameter in pore distribution, for the positive and negative electrode active material-containing layers, respectively.

A support apparatus for the production of electric energy storage devices comprising a support element, which is linearly movable along a feeding plane, an actuator system, which is configured to drive the support element in an intermittent manner, a first roller, which is configured to be caused to rotate at a variable speed, and a second roller, which is opposite the first roller. A further actuator system is configured to control the speed of the first roller compensating for the intermittent movement of the support element.

Set forth herein are electrochemical cells which include a negative electrode current collector, a lithium metal negative electrode, an oxide electrolyte membrane, a bonding agent layer, a positive electrode, and a positive electrode current collector. The bonding agent layer advantageously lowers the interfacial impedance of the oxide electrolyte at least at the positive electrode interface and also optionally acts as an adhesive between the solid electrolyte separator and the positive electrode interface. Also set forth herein are methods of making these bonding agent layers including, but not limited to, methods of preparing and depositing precursor solutions which form these bonding agent layers. Set forth herein, additionally, are methods of using these electrochemical cells.

Set forth herein are electrochemical cells which include a negative electrode current collector, a lithium metal negative electrode, an oxide electrolyte membrane, a bonding agent layer, a positive electrode, and a positive electrode current collector. The bonding agent layer advantageously lowers the interfacial impedance of the oxide electrolyte at least at the positive electrode interface and also optionally acts as an adhesive between the solid electrolyte separator and the positive electrode interface. Also set forth herein are methods of making these bonding agent layers including, but not limited to, methods of preparing and depositing precursor solutions which form these bonding agent layers. Set forth herein, additionally, are methods of using these electrochemical cells.

An electrode assembly includes: a plurality of first electrodes, each including a first electrode portion having a first active material layer thereon and a first uncoated region electrically connected to the first electrode portion; a separation membrane including a plurality of receiving portions arranged at intervals and respectively accommodating the first electrode portions, the separation membrane being folded so that surfaces of adjacent ones of the receiving portions face each other; and a plurality of second electrodes respectively positioned between adjacent ones of the receiving portions that face each other to overlap a corresponding one of the first electrode portions. The plurality of second electrodes each include a second electrode portion having a second active material layer thereon and a second uncoated region electrically connected to the second electrode portion.

The embodiment claims an electrode assembly, its manufacturing method and battery cell made of such. The assembly unit from the top to bottom integrates first electrode plate, first separator plate, second electrode plate, second separator plate and another first electrode plate. The polarity of the first and second electrode plate is opposite to each other. The edges of the first and second separator plates join on one side forming U shape structure. The electrode assembly in this embodiment is a unit for multiple stacking of such to form the internal structure of a battery cell. Such design offers improved efficiency in cell manufacturing and achieves accurate alignments between positive and negative electrodes. The assembly unit upon numerous stacking would ensure overall alignments of positive and negative electrodes for cell quality improvement.