JPWO2020139881A5 - - Google Patents

Claims (15)

A battery comprising an air positive electrode, a negative electrode, an aqueous electrolyte, and a housing,
the battery is a size 13 metal-air battery;
the housing comprises one or more air vents defining a vent area;
a total vent area defined by all of said air ports is between about 0.050 mm ² and about 0.115 mm ² ; and said aqueous electrolyte comprises an amphoteric fluorosurfactant;
battery. The total vent area defined by all of said air ports is from about 0.05 mm ² to about 0.10 mm ² , or from about 0.060 mm ² to about 0.950 mm ² , or from about 0.060 mm ² to about 0.085 mm. ² , or from about 0.07 mm ² to about 0.09 mm ² , or from about 0.08 mm ² to about 0.085 mm ² . 2. The battery of claim 1, wherein said negative electrode comprises zinc. 2. The battery of claim 1, further comprising a carbon dioxide absorbent, said carbon dioxide absorbent comprising lithium hydroxide, calcium hydroxide, lithium peroxide, an amine, or olivine . further comprising an air diffusion pad, said air diffusion pad comprising said carbon dioxide absorbent, or
further comprising an inner surface of the housing having a coating of the carbon dioxide absorbent, or
5. The method of claim 4 , further comprising an air reservoir defined by the housing and an air diffusion layer within the battery, and wherein the carbon dioxide absorbent is deposited as a powder or film on the surface of the air reservoir. battery. The amphoteric fluorosurfactant comprises a compound of formula (I),

During the ceremony,
^R1 , ^R2 , R3 ^{, R4} , ^R5 , ^R6 , ^R7 , and ^R8 are each independently hydrogen, alkyl, alkenyl, or cycloalkyl groups;
X ¹ is -C(O)-, -SO ₂ -, -C(O)NR ^a -, -SO ₂ NR ^a -, -CO ₂ -, or -SO ₂ O-;
R ^a is H or an alkyl group;
m and p are each independently 0, 1, 2, 3, 4, 5, or 6;
n and r are each independently 1, 2, 3, 4, or 5;
A battery according to claim 1 . ^R1 , ^R2 , R3 ^{, R4} , ^R5 , and ^R6 are each H;
R ⁷ and R ⁸ are each independently C ₁ -C ₄ alkyl;
X ¹ is SO ₂ ;
n and p are 2;
m is 4, 5, or 6;
r is 1;
The battery according to claim 6 . A battery comprising an air positive electrode, a negative electrode, an aqueous electrolyte, and a housing,
said battery is a size 312 metal-air battery;
the housing comprises one or more air vents defining a vent area;
a total vent area defined by all of said air ports is between about 0.03 mm ² and about 0.08 mm ² ; and said aqueous electrolyte comprises an amphoteric fluorosurfactant;
battery. The total vent area defined by all of said air ports is from about 0.04 mm ² to about 0.07 mm ² , or from about 0.04 mm ² to about 0.06 mm ² , or from about 0.04 mm ² to about 0.05 mm. 9. The battery of claim 8 , which is ² . 9. The battery of claim 8 , wherein said negative electrode comprises zinc. 9. The battery of claim 8 , further comprising a carbon dioxide absorbent, said carbon dioxide absorbent comprising lithium hydroxide, calcium hydroxide, lithium peroxide, an amine, or olivine . further comprising an air diffusion pad, said air diffusion pad comprising a carbon dioxide absorbent, or
further comprising an inner surface of the housing having a coating of the carbon dioxide absorbent, or
12. The method of claim 11 , further comprising an air reservoir defined by the housing and an air diffusion layer within the battery, and wherein the carbon dioxide absorbent is deposited on the surface of the air reservoir as a powder or film . battery. The amphoteric fluorosurfactant comprises a compound of formula (I),

During the ceremony,
^R1 , ^R2 , R3 ^{, R4} , ^R5 , ^R6 , ^R7 , and ^R8 are each independently hydrogen, alkyl, alkenyl, or cycloalkyl groups;
X ¹ is -C(O)-, -SO ₂ -, -C(O)NR ^a -, -SO ₂ NR ^a -, -CO ₂ -, or -SO ₂ O-;
R ^a is H or an alkyl group;
m and p are each independently 0, 1, 2, 3, 4, 5, or 6;
n and r are each independently 1, 2, 3, 4, or 5;
A battery according to claim 8 . ^R1 , ^R2 , R3 ^{, R4} , ^R5 , and ^R6 are each H;
R ⁷ and R ⁸ are each independently C ₁ -C ₄ alkyl;
X ¹ is SO ₂ ;
n and p are 2;
m is 4, 5, or 6;
r is 1;
14. The battery of Claim 13 . The battery of any one of claims 8-14 , wherein the aqueous electrolyte further comprises from about 500 ppm to about 20,000 ppm of lithium hydroxide.