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

Unit: 1,000 (Quantity), million JPY (Amount)
  December 2020 Accumulated total from January to December 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) 181,517  50,371  94%  115%  2,021,525  511,187  88%  95% 
Total of primary batteries 105,826  2,869  101%  113%  1,000,978  27,811  83%  92% 
Zinc carbon 258  10  963  51 
Alkaline 10,002  152  207%  176%  114,433  1,847  157%  139% 
Silver oxide 42,313  711  75%  93%  376,257  5,749  66%  78% 
Lithium 53,253  1,899  125%  128%  508,638  16,909  90%  91% 
Zinc air 0%  0%  682  56%  46% 
Others 97  39%  48%  3,247  79%  107% 
Total of secondary batteries 75,691  47,501  85%  115%  1,020,547  483,376  93%  95% 
Lead-acid 148  1,022  85%  86%  1,602  11,004  78%  74% 
Nickel cadmium 919  137  69%  94%  10,129  1,381  80%  78% 
Nickel iron 31%  41% 
Nickel metal-hydride 14,496  8,317  108%  75%  152,670  94,436  105%  81% 
Lithium ion 49,627  27,888  77%  144%  740,974  264,748  88%  118% 
Others 10,501  10,137  108%  106%  115,171  111,807  121%  75% 
Total of all batteries (imported) 120,524  21,737  81%  102%  1,608,643  222,203  104%  97% 
Total of primary batteries 111,078  1,731  80%  88%  1,515,279  23,854  105%  102% 
Zinc carbon 11,213  114  74%  73%  161,867  1,702  100%  98% 
Alkaline button 2,479  21  59%  60%  42,656  327  147%  148% 
Alkaline (exc. button type) 81,728  993  81%  81%  1,113,859  13,718  106%  104% 
Silver oxide 195  158%  164%  2,103  73  128%  124% 
Lithium 11,825  487  96%  117%  132,354  6,078  94%  95% 
Zinc air 3,637  71  58%  60%  62,388  1,297  101%  100% 
Others 36  20%  236%  52  659  39%  145% 
Total of secondary batteries 9,447  20,005  98%  104%  93,364  198,348  89%  96% 
Lead-acid 949  4,159  126%  121%  8,584  39,458  103%  108% 
Nickel cadmium 46  100  362%  74%  599  1,395  82%  83% 
Nickel iron
Nickel metal-hydride 2,946  485  101%  98%  25,458  4,574  109%  96% 
Lithium ion 5,458  14,277  93%  100%  58,113  142,630  82%  92% 
Others 47  984  70%  113%  611  10,289  52%  118% 
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.