Implantable medical device having a substantially flat battery

An implantable medical device, comprising:

• a housing including opposing first and second shield walls;
• a capacitor disposed within the housing;
• an electronics module electrically connected to the capacitor and disposed within the housing adjacent the first shield wall;
• and
• a substantially fiat battery electrically connected to the electronics module, the battery being positioned between the electronics module and the second shield wall;
• wherein a length and width of the battery corresponds with a length and width of the electronics module.

A method of manufacturing an implantable medical device, the method comprising:

• providing a housing including opposing first and second shield walls;
• securing a capacitor to the first shield wall;
• securing an electronics module to the first shield wall;
• providing a power source comprising a substantially flat battery;
• placing the battery over the electronics module;
• electrically connecting the battery to the electronics module;
• and
• coupling the second shield wall to the first shield wall such that the battery is disposed within the housing between the electronics module and the second shield wall.