| 摘要 |
According to one embodiment, an electrochemical cell includes a positive electrode, a negative electrode, a sulfide-based solid electrolyte layer and an oxide-based solid electrolyte layer. The positive electrode includes positive electrode active material particles which absorb and release lithium ions at a potential of 3 V (vs. Li/Li+) or more. The sulfide-based solid electrolyte layer is bonded to the negative electrode. The oxide-based solid electrolyte layer has a thickness of 0.5 μm or less and is provided on surfaces of the positive electrode active material particles. |
