System and method for thermochemical storage of energy

A heat exchanger system for thermochemical storage and release, comprising a thermal exchange circuit formed by circuit walls with a heat exchanger fluid, the circuit further in thermal connection with a thermochemical module, the thermochemical module comprising:

• a thermochemical material that stores and releases heat by a thermochemical exchange process under release or binding of a sorbate,
• a multitude of largely parallel oriented fibers, and
• a planar structure of thermoconductive strips that is connected to the thermal exchange circuit and that extends between the fibers and the circuit walls and that thermomechanically connect the circuit walls to the thermochemical material,
• wherein each of the fibers comprise a microporous wall, the multitude of largely parallel oriented fibers defining a plurality of first channels that comprises the thermochemical material that stores and releases heat by a thermochemical exchange process under release or binding of a sorbate, and
• wherein a multitude of second channels is formed, in the complementary space between the fibers, to provide an exchange of the sorbate to the thermochemical material via the microporous wall, said second channels connected to an exhaust, said thermoconductive strips traversing the structure of second channels.