Electrode for power storage device, and power storage device
To enhance lithium ion conductivity in an electrode for a power storage device, and at the interface between the electrode and another member. The power storage device electrode includes an oxide-based lithium ion conductive solid electrolyte, an active material, and an ionic liquid.
1. A power storage device electrode comprising:
an oxide-based lithium ion conductive solid electrolyte;
an active material;
an ionic liquid; and
a hydrocarbon, wherein
the active material is selected from the group consisting of LifePO 4 , Li(Co 1/3 Ni 1/3 Mn 1/3 )O 2 and LiNi 0.8 Co 0.15 Al 0.05 O 2 .
2. The power storage device electrode according to claim 1 , wherein
the oxide-based lithium ion conductive solid electrolyte has a garnet-type crystal structure including at least Li, La, Zr, and O.
3. The power storage device electrode according to claim 1 , wherein the active material consists of LiNi 0.7 Co 0.15 Al 0.05 O 2 .
4. A power storage device electrode comprising:
an oxide-based lithium ion conductive solid electrolyte;
an active material; and
an ionic liquid, wherein
the power storage device electrode contains;
the active material in an amount by volume of 40 vol % or more and 85 vol % or less,
the oxide-based lithium ion conductive solid electrolyte in an amount by volume of 5 vol % or more and 40 vol % or less, and
the ionic liquid in an amount by volume of 3 vol % or more and 35 vol % or less.
5. The power storage device electrode according to claim 4 , wherein
the oxide-based lithium ion conductive solid electrolyte has a garnet-type crystal structure including at least Li, La, Zr, and O.
6. The power storage device electrode according to claim 4 , wherein the oxide-based lithium ion conductive solid electrolyte is in the amount by volume of 20 vol % or more and 40 vol % or less.
7. A power storage device comprising:
a solid electrolyte layer;
a cathode;
an anode; and
a collector member, wherein
at least one of the cathode and the anode is formed of the power storage device electrode as recited in claim 1 .
8. A power storage device comprising:
a solid electrolyte layer;
a cathode;
an anode; and
a collector member, wherein
at least one of the cathode and the anode is formed of the power storage device electrode as recited in claim 4 .