摘要:
There is provided a simple-structured and inexpensive device for stacking a successive separator and sheet electrodes which can protect an end portion of a sheet electrode when folding the successive separator, and which enables smooth folding of the separator to improve the productivity. The device comprises a stacking stage 10 which adsorbs and holds a leading end of the tape-like separator S, and on which sheet electrodes P, N and the separator S are successively stacked, separator reciprocating means for reciprocating the tape-like separator S on the stacking stage 10 with the stacking stage 10 being as a center, and a folding guide member 20 which comes close/moves apart relative to the stacking stage 10, covers both side ends of the stacked sheet electrode P, N in the moving direction of the separator S, and guides folding of the separator S accompanied by a reciprocal movement of the separator S at both side ends of the sheet electrode.
摘要:
The invention relates to an electrochemical cell (2) with a cathode electrode (K) and an anode electrode (A) separated by a separator (E), whereby: the cathode electrode (K) comprises at least a two-phase active material based on a lithium-transition metal oxide, and the anode electrode (A) comprises at least such a material that the anode electrode (A) has an open circuit voltage curve with a total travel of at least 0.7 V and a steep voltage discharge curve without a saddle point.
摘要:
The invention relates to an electrochemical cell (2) with a pair of electrodes (A, K) arranged as a stack of flat electrode films (A1 to An, K1 to Kn) separated by a separator film, wherein: electrode films (A1 to An, K1 to Kn) of each electrode (A, K) are electrically connected with each other through inner electrode conductors (4.A, 4.K); the inner electrode conductors (4.A, 4.K) of the different electrodes (A, K) are arranged on opposite sides of the electrochemical cell (2) in electrode material-free area of the electrode films (A1 to An, K1 to Kn); each inner electrode conductor (4.A, 4.K) is connected with a separate inner conductor element (6.A, 6.K) through a predetermined number of weld points (5.1 to 5.z) integrated in the electrode material-free area of the respective electrode (A, K).
摘要:
The invention relates to an electrochemical cell (2) with a pair of electrodes (A, K) arranged as a stack of flat electrode films (A1 to An, K1 to Kn) separated by a separator film, wherein: electrode films (A1 to An, K1 to Kn) of each electrode (A, K) are electrically connected with each other through inner electrode conductors (4.A, 4.K); the inner electrode conductors (4.A, 4.K) of the different electrodes (A, K) are arranged on opposite sides of the electrochemical cell (2) in electrode material-free area of the electrode films (A1 to An, K1 to Kn); each inner electrode conductor (4.A, 4.K) is connected with the respective electrode films (A1 to An, K1 to Kn) through a predetermined number of weld points (5.1 to 5.z) in the electrode material -free area of the respective electrode (A, K); each inner electrode conductor (4.A, 4.K) comprises a predetermined number of openings (6.1 to 6.m) in which coupling elements are set to connect the inner electrode conductor (4.A, 4.K) with an outward electrode conductor (7.A, 7.K) for the respective electrode (A, K).
摘要:
An energy storage assembly with a plurality of flat electrochemical cells, each of them includes a pair of electrodes which electrically connect the electrochemical cells with each other through outward electrode terminals, wherein each electrochemical cell includes as a pair of outward electrode terminals a straight outward terminal and a curved outward terminal, the electrochemical cells are connected with each other that a straight outward terminal of one of the electrochemical cell is connected with a curved outward terminal of an adjacent electrochemical cell.
摘要:
Disclosed are a sheet-type secondary battery in which sealing performance and insulating performance around an electrode terminal can be secured even if a flexible laminated sheath and the electrode terminal are bonded via a bonding resin, and also a manufacturing method therefor. The sheet-type secondary battery includes: a laminated sheath (2) including an inner layer (2a) made of a thermoplastic resin and a metal layer (2b) ; and electrode terminals (3), each of which is connected electrically to an internal electrode pair (1) and passes through a heat seal portion (20) of the laminated sheath (2) in a hermetic manner so as to be led out externally. The laminated sheath (2) and the electrode terminal (3) are bonded with a bonding resin (5) at the heat seal portion (20) in which the electrode terminal (3) is interposed. The inner layer (2a) of the laminated sheath (2) opposed to the electrode terminal (3) has an excess resin receiving portion (20a) formed thereon for receiving an excess resin in a heat sealing process. The excess resin receiving portion (20a) is not formed in a heat seal portion (20P) at which the inner layers (2a) of the laminated sheaths (2) are bonded.