| abstract |
The electronic device of the present invention is an electronic device provided with a nonaqueous solvent battery such as a lithium ion secondary battery and with an electronic circuit arranged adjacent to the battery, the adjacent electronic circuit being protected such that it is not adversely affected by an electrolyte leaked from the nonaqueous solvent battery. An epoxy resin composition which is a resin used to protect the circuit is superior in resistance to an electrolyte, water resistance, heat resistance, adhesion, prevention of resin cracks during a cooling and heating cycle and storage stability and is used to protect the electronic circuit, thereby making it possible to improve the life of an electronic device remarkably. The epoxy resin composition used in the present invention is an epoxy resin composition comprising (a) an epoxy resin, (b) a phenol compound and a metal complex as a latent catalyst, (c) a butyral resin and (d) an inorganic filler. It is preferable that this epoxy resin be a liquid at ambient temperature and the latent catalyst be premixed in an epoxy resin in advance. |