Back to results
US 12,467,664 B2Granted
Electrocaloric effect element
AssigneeMurata Manufacturing Co., Ltd.
InventorSakyo Hirose
Life of this patent
Estimating the term…
Abstract
An electrocaloric effect element includes a laminate including an electrode layer mainly including Pt and a ceramic layer that are stacked, in which the ceramic layer has a perovskite structure and mainly includes a ceramic including Pb, Sc, and Ta, where a content ratio of Sc is y, a content ratio of Ta is 1−y, and a range of the y is about 0.450≤y≤about 0.495.
Claims20
An electrocaloric effect element comprising:
- a laminate including an electrode layer mainly including Pt and a ceramic layer that are stacked;
- wherein
- the electrode layer mainly includes Pt such that Pt has a largest % by mass in the electrode layer;
- the ceramic layer has a perovskite structure and mainly includes a ceramic including Pb, Sc, and Ta, a content ratio of Sc is y, a content ratio of Ta is 1-y, and a range of the y is about 0.450≤y≤about 0.495;
- and
- the ceramic layer mainly includes the ceramic such that the ceramic has a largest % by mass in the ceramic layer.
3 more elements
An electrocaloric effect element comprising:
- a laminate including an electrode layer mainly including Pt and a ceramic layer that are stacked;
- wherein
- the electrode layer mainly includes Pt such that Pt has a largest % by mass in the electrode layer;
- the ceramic layer has a perovskite structure and mainly includes a ceramic represented by a formula PbxScyTa1-yO3-σ, where x satisfies about 0.97≤x≤about 1.03, y satisfies about 0.450≤y≤about 0.495, and σsatisfies −0.1≤σ≤0.1;
- and
- the ceramic layer mainly includes the ceramic such that the ceramic has a largest % by mass in the ceramic layer.
3 more elements
Dependencies are inferred from the claim text.