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Five-year battery export and import statistics
(source: Trade statistics released by the Ministry of Finance Japan)

Export
  Amount (100 million yen) Quantity (100 million pcs)
2011 2012 2013 2014 2015 2011 2012 2013 2014 2015
Primary batteries
Zinc carbon 3 2 1 0 1 0.1 0.1 0.0 0.0 0.0
Alkaline 24 9 8 9 7 1.5 0.6 0.5 0.4 0.3
Silver oxide 69 64 70 70 71 5.2 4.5 4.9 5.2 5.4
Lithium 146 144 150 178 215 5.0 4.1 4.2 4.6 5.3
Others 8 12 9 10 11 0.1 0.0 0.0 0.0 0.0
Subtotal 250 230 238 267 304 11.9 9.3 9.6 10.2 11.0
Secondary batteries
Lead-acid 82 88 106 107 135 0.0 0.0 0.0 0.0 0.0
Nickel cadmium 133 118 96 56 59 1.5 1.4 1.1 0.6 0.6
Nickel iron 0 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Lithium ion 1,959 1,831 2,004 2,152 2,460 10.6 9.0 7.7 8.8 9.6
Nickel metal-hydride 462 561 667 610 655 1.6 1.4 1.5 1.3 1.5
Others 223 561 902 1,075 938 0.7 0.8 0.5 0.5 0.3
Subtotal 2,858 3,158 3,775 4,000 4,247 14.4 12.6 10.8 11.2 12.1
Total 3,108 3,389 4,013 4,267 4,551 26.3 21.9 20.4 21.4 23.1
Total values may differ because they are rounded off to the nearest whole number or decimal place.

Import
  Amount (100 million yen) Quantity (100 million pcs)
2011 2012 2013 2014 2015 2011 2012 2013 2014 2015
Primary batteries
Zinc carbon 35.9 17.8 18.4 20.6 20.1 3.1 2.0 1.7 1.7 1.4
Alkaline 116.8 94.2 126.0 132.7 143.6 9.2 9.0 10.1 10.0 9.9
Silver oxide 1.0 1.3 1.7 1.1 0.9 0.1 0.1 0.1 0.0 0.0
Lithium 28.4 37.7 59.0 63.3 62.6 1.0 1.2 1.6 1.4 1.4
Others 10.1 8.6 14.3 31.5 17.0 0.5 0.5 0.5 0.6 0.6
Subtotal 192.2 159.6 219.4 249.1 244.2 13.8 12.8 14.0 13.7 13.3
Secondary batteries
Lead-acid 276.2 289.0 293.8 315.6 332.1 0.1 0.1 0.1 0.1 0.1
Nickel cadmium 21.1 20.4 22.9 21.3 20.9 0.1 0.0 0.0 0.0 0.0
Nickel iron 0.1 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Others 526.9 - - - - 0.8 - - - -
Lithium ion - 416.5 638.9 567.8 767.6 0.1 0.5 0.5 0.4 0.5
Nickel metal-hydride - 57.4 55.4 61.2 61.4 0.1 0.2 0.2 0.2 0.2
Others - 129.8 115.3 108.1 152.8 0.0 0.1 0.2 0.2 0.1
Subtotal 824.3 913.0 1126.4 1073.9 1334.7 1.0 1.0 1.0 1.0 0.9
Total 1016.5 1072.6 1345.8 1323.0 1578.9 14.8 13.8 15.0 14.6 14.2
Total values may differ because they are rounded off to one decimal place.
In 2012, "Others" in "Secondary batteries" was divided into "Lithium ion," "Nickel metal-hydride" and "Others."