Glass ceramics, lithium ion conductor, battery, electronic device, and electrode manufacturing method

The glass ceramic contains an oxide containing lithium (Li), silicon (Si) and boron (B), and has two or more peaks appearing in the range of 20 ° ≦ 2θ ≦ 25 ° in the X-ray diffraction spectrum; Two or more peaks appearing in the range of ° <2θ ≦ 30 °. [Selection] Figure 5