article_snippet: Piezoelectricity is the charge that builds up in materials such as those made of crystalline and ceramic structures.
article_snippet: Exposing those made of crystalline and ceramic structures to mechanical force causes a separation of electrical charge, which sets up a voltage that can be used to charge products.
article_snippet: When a piezoelectric material is squeezed rapidly, a piezoelectric material produces a small electrical voltage for a moment.
article_snippet: If a voltage is put across the material a voltage makes a tiny change in shape.