Alkaline battery
OwnerHarunari Shimamura, Jun Nunome +1inventors
InventorsHarunari Shimamura, Jun Nunome, Fumio Kato
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Abstract
A negative electrode (6) of an alkaline battery is a wound porous sheet containing zinc, and includes a hollow part (6a). A main body (21) of a negative electrode current collector (20) is disposed in the hollow part (6a). A retainer (22) of the negative electrode current collector (20) is disposed between portions of the negative electrode (6) which are adjacent to each other in the radial direction of the negative electrode (6). The retainer (22) is connected to the main body (21) outside the negative electrode (6). The main body (21) and the retainer (22) of the negative electrode current collector (20) sandwich a portion of the negative electrode (6) which is present between the main body (21) and the retainer (22).
Claims17
An alkaline battery comprising:
- a positive electrode in a battery case;
- a negative electrode inside the positive electrode;
- a separator between the positive electrode and the negative electrode;
- a negative electrode current collector;
- and
- an alkaline electrolyte, wherein
- the negative electrode is a wound porous sheet containing zinc, and has a hollow part extending in a longitudinal direction of the battery case,
- the negative electrode current collector includes
- a main body which is in the shape of a rod, and is disposed in the hollow part such that an axial direction of the main body is parallel to a longitudinal direction of the hollow part, and
- a retainer disposed between portions of the negative electrode which are adjacent to each other in a radial direction of the negative electrode, the retainer being connected to the main body, and
- the main body and the retainer sandwich a portion of the negative electrode which is present between the main body and the retainer.
An alkaline battery comprising:
- a positive electrode in a battery case;
- a negative electrode inside the positive electrode;
- a separator between the positive electrode and the negative electrode;
- a negative electrode current collector;
- and
- an alkaline electrolyte, wherein
- the negative electrode is a wound porous sheet containing zinc, and has a hollow part extending in a longitudinal direction of the battery case, and
- the negative electrode current collector includes
- a main body which is in the shape of a rod, and is disposed in the hollow part such that an axial direction of the main body is parallel to a longitudinal direction of the hollow part, and
- an inclined member inclined relative to the axial direction of the main body, one end of the inclined member being connected to the main body, and the other end of the inclined member being disposed in the negative electrode.
An alkaline battery comprising:
- a positive electrode in a battery case;
- a negative electrode inside the positive electrode;
- a separator between the positive electrode and the negative electrode;
- a negative electrode current collector;
- and
- an alkaline electrolyte, wherein
- the negative electrode is a wound porous sheet containing zinc, and has a hollow part extending in a longitudinal direction of the battery case,
- the negative electrode current collector includes a main body which is in the shape of a rod, and has a side surface provided with a raised/recessed part, and
- the negative electrode current collector is disposed in the hollow part such that an axial direction of the main body is parallel to a longitudinal direction of the hollow part.
An alkaline battery comprising:
- a positive electrode in a battery case;
- a negative electrode inside the positive electrode;
- a separator between the positive electrode and the negative electrode;
- a negative electrode current collector;
- and
- an alkaline electrolyte, wherein
- the negative electrode is a wound porous sheet containing zinc, and
- the negative electrode current collector includes a cover plate covering one end surface of the negative electrode, and a pressure member pressing the cover plate against the end surface of the negative electrode via a spring body.
Dependencies are inferred from the claim text.