The adhesive composition provided herein contains, as a main component, a polymer (A) having a polyether structure, and further contains a conductive agent and a radical scavenger. When an adhesive sheet is formed from said adhesive composition, the adhesive sheet has a surface resistance value of at most 1x1010 O/?. Moreover, the adhesive sheet provided herein is formed from an adhesive composition containing a polymer (B) having a relative permittivity of at least 5.0 at a frequency of 100 kHz, and the content of formic acid in the adhesive sheet, which has been heated at 105 degrees C for 120 hours, may be at most 1,000 ppm on a mass basis.

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