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As of September 2020
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  September 2020 Accumulated total from January to September 2020
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) 178,002  49,747  82%  106%  1,474,017  357,049  85%  88% 
Total of primary batteries 65,128  1,817  62%  73%  711,742  19,317  77%  84% 
Zinc carbon 265  16  552  36 
Alkaline 10,970  163  191%  156%  79,360  1,327  144%  131% 
Silver oxide 21,219  339  41%  53%  277,735  4,102  65%  75% 
Lithium 32,675  1,140  70%  79%  353,410  11,796  81%  85% 
Zinc air 682  75%  58% 
Others 160  61%  53%  2,048  62%  82% 
Total of secondary batteries 112,873  47,930  100%  108%  762,275  337,732  92%  88% 
Lead-acid 133  921  67%  70%  1,141  7,885  75%  71% 
Nickel cadmium 1,139  131  94%  77%  7,035  948  82%  78% 
Nickel iron 0%  0%  42%  53% 
Nickel metal-hydride 12,258  7,423  84%  72%  109,779  67,438  103%  82% 
Lithium ion 89,331  30,641  101%  152%  561,204  180,954  87%  108% 
Others 10,013  8,814  114%  70%  83,116  80,508  126%  66% 
Total of all batteries (imported) 134,070  18,044  100%  103%  1,165,988  159,700  107%  92% 
Total of primary batteries 127,813  2,220  101%  104%  1,096,824  17,733  109%  105% 
Zinc carbon 13,971  164  111%  108%  118,716  1,259  106%  106% 
Alkaline button 2,479  22  94%  209%  33,569  251  170%  173% 
Alkaline (exc. button type) 96,707  1,240  104%  106%  790,872  9,801  109%  106% 
Silver oxide 96  38%  49%  1,504  52  127%  118% 
Lithium 8,882  587  79%  95%  101,169  4,705  100%  97% 
Zinc air 5,673  125  86%  85%  50,950  1,064  109%  106% 
Others 78  50%  214%  45  601  50%  158% 
Total of secondary batteries 6,257  15,823  79%  103%  69,164  141,967  89%  90% 
Lead-acid 663  3,368  94%  112%  6,142  28,434  103%  108% 
Nickel cadmium 34  122  21%  70%  467  1,037  80%  82% 
Nickel iron
Nickel metal-hydride 2,093  331  139%  101%  17,982  3,315  112%  97% 
Lithium ion 3,395  11,350  62%  103%  44,058  101,404  81%  85% 
Others 73  652  87%  87%  515  7,778  51%  123% 
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.