The present disclosure relates to a blockchain based platform and a method for consumers to invest in climate related financial products at an amount voluntarily chosen based on a calculation of carbon emission amount from the transactions data crawled from the servers of financial institutions that operates credit and cash cards and to return the principal investment and dividends accrued from the climate related investments options to the consumers who paid the voluntarily chosen amount of carbon emission charges of their consumption of goods and services.

The platform embodied in the present disclosure provides an incentive for consumers to voluntarily pay their carbon emission charges by financially intermediating voluntary carbon emission payment into climate related investment options and a blockchain based security of transactions for the return of the principal investments and dividends accrued from the climate related financial products to those consumers who voluntarily paid carbon emission charges.

The present disclosure relates to a blockchain based platform and a method for consumers to invest in climate related financial products at an amount voluntarily chosen based on a calculation of carbon emission amount from the transactions data crawled from the servers of financial institutions that operates credit and cash cards and to return the principal investment and dividends accrued from the climate related investments options to the consumers who paid the voluntarily chosen amount of carbon emission charges of their consumption of goods and services. The platform embodied in the present disclosure provides an incentive for consumers to voluntarily pay their carbon emission charges by financially intermediating voluntary carbon emission payment into climate related investment options and a blockchain based security of transactions for the return of the principal investments and dividends accrued from the climate related financial products to those consumers who voluntarily paid carbon emission charges.

The present invention is to provide an electrode active material and a method for producing the same capable of preventing production of foreign substance, poor coating and deterioration of electrode active material upon covering the surface of the electrode active material with ion conductive oxide, decreasing battery resistance and having higher output of battery. Disclosed is a method for producing an electrode active material, the surface of which is covered with ion conductive oxide, comprising the steps of: preparing an alkoxide solution by mixing at least alkoxide compound and liquid water; and applying and drying the alkoxide solution on a surface of an electrode active material under dry atmosphere, and an electrode active material, the surface of which is covered with ion conductive oxide, wherein an area on the surface of the electrode active material occupied by a substance other than the ion conductive oxide is 21% or less.