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As of June 2019
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  June 2019 Accumulated total from January to June 2019
Quantity Amount y-o-y change in quantity y-o-y change in amount Quantity Amount y-o-y change in quantity y-o-y change in amount
Total of all batteries (exported) 188,667  44,650  84%  86%  1,093,260  268,615  84%  92% 
Total of primary batteries 109,249  2,887  103%  101%  605,896  15,324  109%  100% 
Zinc carbon 40  342  36 
Alkaline 7,658  137  240%  189%  38,049  703  185%  173% 
Silver oxide 49,053  640  108%  106%  275,745  3,607  118%  114% 
Lithium 52,498  1,713  91%  91%  291,290  9,252  98%  88% 
Zinc air 0%  0%  468  92%  143% 
Others 392  192%  136%  1,718  91%  140% 
Total of secondary batteries 79,418  41,764  67%  85%  487,365  253,291  66%  91% 
Lead-acid 182  1,405  91%  97%  1,003  7,613  92%  83% 
Nickel cadmium 535  68  42%  46%  4,700  727  46%  68% 
Nickel iron 0%  0%  0%  0% 
Nickel metal-hydride 14,968  9,199  98%  107%  68,774  54,134  89%  112% 
Lithium ion 55,488  15,991  60%  67%  372,143  108,054  62%  73% 
Others 8,245  15,100  93%  102%  40,744  82,762  76%  119% 
Total of all batteries (imported) 105,011  17,693  104%  108%  722,027  115,430  104%  120% 
Total of primary batteries 96,951  1,563  105%  76%  669,071  11,064  104%  101% 
Zinc carbon 9,651  113  86%  96%  69,410  732  85%  86% 
Alkaline button 1,237  49%  52%  13,920  107  82%  88% 
Alkaline (exc. button type) 70,603  882  122%  113%  484,311  6,088  111%  110% 
Silver oxide 91  44%  45%  721  28  61%  73% 
Lithium 10,070  387  65%  66%  70,007  3,123  90%  96% 
Zinc air 5,257  94  105%  123%  30,631  699  96%  124% 
Others 41  78  95%  16%  70  287  44%  50% 
Total of secondary batteries 8,060  16,130  90%  113%  52,957  104,366  106%  122% 
Lead-acid 583  2,451  98%  81%  3,961  17,832  101%  97% 
Nickel cadmium 55  110  136%  81%  341  830  90%  92% 
Nickel iron
Nickel metal-hydride 1,788  397  107%  109%  11,175  2,419  98%  101% 
Lithium ion 5,599  12,639  85%  130%  36,793  79,077  109%  139% 
Others 36  533  39%  51%  687  4,208  89%  61% 
Total values may differ because they are rounded off to the nearest integer.

As of 2012, the "Others" category of imported secondary batteries has been separated into Nickel metal-hydride, Lithium ion and Others.
As of 2016, the "Alkaline" category of imported primary batteries has been separated into "Alkaline button" and "Alkaline (exc. button type)" categories.