Alkali dry cell
An alkaline dry battery including: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an alkaline electrolyte retained in the positive electrode, the negative electrode, and the separator. The negative electrode includes a negative electrode active material containing zinc, and an additive. The additive includes a sulfur-containing cyclic compound.
1 . An alkaline dry battery, comprising:
a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an alkaline electrolyte retained in the positive electrode, the negative electrode, and the separator,
the negative electrode including a negative electrode active material containing zinc, and an additive,
the additive including a sulfur-containing cyclic compound,
wherein the sulfur-containing cyclic compound has a ring structure having a sulfur atom, and is selected from the group consisting of, 1,3-propenesultone (1-propene 1,3-sultone), 1,4-butanesultone, 1,5-pentanesultone, 1-methyl-1,3-propanesultone, 2-methyl-1,3-propanesultone, 3-methyl-1,3-propanesultone, 2-trifluoromethyl-1,3-propanesultone, 1-fluoro-1,3-propanesultone, 2-fluoro-1,3-propanesultone, 3-fluoro-1,3-propanesultone, 1-methyl-1,3-propenesultone, 2-methyl-1,3-propenesultone, 3-methyl-1,3-propenesultone, 3-fluoro-1,3-propenesultone, 2-trifluoromethyl-1,3-propenesultone, butylene sulfite, vinylene sulfite, fluoroethylene sulfite, ethylene sulfate (1,3,2-dioxathiolane 2,2-dioxide), sulfolane, 2-methylsulfolane, 3-methylsulfolane, 2-fluorosulfolane, and 3-fluorosulfolane,
wherein the sulfur-containing cyclic compound is retained in the negative electrode in an amount of 0.02 parts by mass or more and 1 part by mass or less per 100 parts by mass of the negative electrode active material included in the negative electrode, and
wherein the alkaline electrolyte is gelled by a gelling agent.
2 . The alkaline dry battery according to claim 1 , where the ring structure is a five-membered ring.
3 . The alkaline dry battery according to claim 1 , wherein the sulfur-containing cyclic compound is a sulfur-containing cyclic ester.
4 . The alkaline dry battery according to claim 3 , wherein the sulfur-containing cyclic ester includes at least one selected from the group consisting of a sulfate ester, a sulfite ester, and a sulfonate ester.
5 . The alkaline dry battery according to claim 1 , wherein the sulfur-containing cyclic compound includes at least one selected from the group consisting of, 1,3-propenesultone, ethylene sulfite, ethylene sulfate, and sulfolane.
6 . The alkaline dry battery according to claim 1 , wherein the positive electrode also retains the sulfur-containing cyclic compound.