JPWO2021243582A5

JPWO2021243582A5 -

Info

Publication number: JPWO2021243582A5
Application number: JP2022506536A
Authority: JP
Publication date: 2024-04-05

Claims

An apparatus for preparing an electrode assembly, comprising:
a winding assembly;
a plurality of first electrode piece unwinding devices configured to supply a plurality of first electrode pieces for the winding assembly;
at least one second electrode piece unwinding device configured to supply at least one second electrode piece for at least one of the winding assemblies;
the polarity of the first electrode piece is opposite to the polarity of the second electrode piece;
the winding assembly is configured to wind the plurality of first electrode pieces and the at least one second electrode piece to form an electrode assembly ;
the electrode assembly preparation apparatus further comprising a plurality of separator unwinding devices configured to supply a plurality of separators for the winding assembly;
the separator is configured to insulate the first electrode piece from the second electrode piece;
the winding assembly includes a winding core configured to wind the first electrode pieces, the at least one second electrode piece, and the separators;
the winding assembly further includes a switching device, the winding core being disposed on the switching device, the switching device being configured to switch the winding core between a loading station and an unloading station;
The electrode assembly manufacturing apparatus includes:
a first cutter configured to cut at least one separator of the plurality of separators and to retain the at least one separator when the winding core has wound the electrode assembly a predetermined number of turns;
a second cutter configured to cut the retained at least one separator when the winding core is at the unloading station; and
Further comprising:
Device for creating electrode assemblies.

The winding core is provided with at least one negative pressure opening for adsorbing an initial winding portion of at least one separator of the plurality of separators.
An apparatus for producing an electrode assembly according to claim 1 .

The negative pressure opening includes a recess or a through hole disposed on the winding surface of the winding core.
An apparatus for producing an electrode assembly according to claim 2 .

The negative pressure opening is triangular, circular, square or irregular in shape.
An apparatus for producing an electrode assembly according to claim 2 or 3 .

The negative pressure openings are distributed in an array on the winding surface of the winding core.
An apparatus for producing an electrode assembly according to any one of claims 2 to 4 .

a press roller configured to press an initial winding portion of at least one of the plurality of separators toward the winding core;
and a spray blow mechanism configured to blow an end of the winding initial portion onto a surface of the winding core so that the winding core winds the winding initial portion, thereby driving the first electrode pieces, the at least one second electrode piece, and the separators to be wound.
An apparatus for producing an electrode assembly according to claim 1 .

a first loading piece configured to supply an initial portion of a winding of at least one of the plurality of separators to the winding core;
An apparatus for producing an electrode assembly according to any one of claims 1 to 6 .

a second loading piece configured to clamp at least one cut separator when at least one separator of the plurality of separators is cut.
An apparatus for producing an electrode assembly according to claim 7 .

a plurality of first composite mechanisms, each of which is configured to combine one first electrode piece of the plurality of first electrode pieces and one separator of the plurality of separators into a first composite electrode piece;
at least one second composite mechanism, each second composite mechanism of the at least one second composite mechanism configured to combine one second electrode piece of the at least one second electrode piece and another separator of the plurality of separators into a second composite electrode piece;
the winding assembly is configured to wind all of the first composite electrode pieces and all of the second composite electrode pieces to form an electrode assembly.
An apparatus for producing an electrode assembly according to any one of claims 1 to 8 .

and further comprising at least one third composite mechanism;
Each third composite mechanism of the at least one third composite mechanism is configured to combine a first electrode piece of the plurality of first electrode pieces, a second electrode piece of the at least one second electrode piece, and two separators of the plurality of separators into a third composite electrode piece;
the winding assembly is configured to wind all of the third composite electrode pieces to form an electrode assembly.
An apparatus for producing an electrode assembly according to any one of claims 1 to 8 .

a fourth composite mechanism configured to combine the plurality of first electrode pieces, the at least one second electrode piece, and the plurality of separators into a fourth composite electrode piece;
the winding assembly is configured to wind the fourth composite electrode piece to form an electrode assembly.
An apparatus for producing an electrode assembly according to any one of claims 1 to 8 .

1. A method of making an electrode assembly, comprising:
providing a plurality of first electrode strips;
providing at least one second electrode strip, the polarity of the first electrode strip being opposite to the polarity of the second electrode strip;
winding the plurality of first electrode pieces and at least one second electrode piece to form an electrode assembly;
A method for making an electrode assembly comprising:

providing a plurality of separators;
The separator is configured to insulate the first electrode piece from the second electrode piece.
A method for making the electrode assembly of claim 12 .

adsorbing an initial winding portion of at least one separator among the plurality of separators;
winding the first electrode pieces, the at least one second electrode piece, and the separators;
Further comprising:
A method for making the electrode assembly of claim 13 .

After an initial winding portion of at least one separator of the plurality of separators is supplied to a winding core of a winding assembly at a specific length, the remaining separators of the plurality of separators are supplied to the winding core and driven by the at least one separator being wound.
A method for making the electrode assembly of claim 13 .

Each of the first composite mechanisms of the plurality of first composite mechanisms combines one of the first electrode pieces of the plurality of first electrode pieces and one of the separators of the plurality of separators into a first composite electrode piece;
Each second composite mechanism of the at least one second composite mechanism combines one second electrode piece of the at least one second electrode piece and another separator of the plurality of separators into a second composite electrode piece;
a winding assembly winding all of the first composite electrode pieces and all of the second composite electrode pieces to form an electrode assembly;
A method for making the electrode assembly of claim 13 .

Each of the at least one third composite mechanisms combines one first electrode piece of the plurality of first electrode pieces, one second electrode piece of the at least one second electrode piece, and two separators of the plurality of separators into a third composite electrode piece;
a winding assembly winding all the third composite electrode pieces to form an electrode assembly;
A method for making the electrode assembly of claim 13 .

a fourth composite mechanism for combining the first electrode pieces, the at least one second electrode piece, and the separators into a fourth composite electrode piece;
a winding assembly winding the fourth composite electrode piece to form an electrode assembly;
A method for making the electrode assembly of claim 13 .