US 11,108,104 B2Granted

Metal-air battery having cylindrical structure

AssigneeSamsung Electronics Co., Ltd.

InventorsWonsung Choi, Kyounghwan Choi, Hyukjae Kwon, Taeyoung Kim, Heungchan Lee

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Abstract

A metal-air battery includes a unit cell wound into a roll. The unit cell includes a negative-electrode metal layer having a first surface located in a circumferential direction of the roll and a second surface facing the first surface and located in the circumferential direction of the roll; a first electrolyte film and a first positive-electrode layer sequentially disposed on the first surface of the negative-electrode metal layer; and a second electrolyte film and a second positive-electrode layer sequentially disposed on the second surface of the negative-electrode metal layer. The unit cell is wound in a way such that the first positive-electrode layer and the second positive-electrode layer face each other.

Claims19

Dependent claims

A metal-air battery comprising a unit cell wound into a roll,

wherein the unit cell comprises:
a negative-electrode metal layer having a first surface located in a circumferential direction of the roll, a second surface facing the first surface and located in the circumferential direction of the roll, a third surface between the first surface and the second surface, and a fourth surface facing the third surface;
a first electrolyte film and a first positive-electrode layer sequentially disposed on the first surface of the negative-electrode metal layer;
a second electrolyte film and a second positive-electrode layer sequentially disposed on the second surface of the negative-electrode metal layer;
a first sealing material which seals the third surface of the negative-electrode metal layer;
and
a second sealing material which seals the fourth surface of the negative-electrode metal layer,
wherein the unit cell is wound into a roll in a way such that the first positive-electrode layer and the second positive-electrode layer face each other, and the first and second sealing materials extend in an axial direction of the roll.

5 more elements

A metal-air battery comprising:

a first cylindrical part and a second cylindrical part arranged in a concentric form to share a central axis,
wherein the second cylindrical part surrounds the first cylindrical part,
wherein the first cylindrical part comprises a first unit cell,
wherein the second cylindrical part comprises a plurality of second unit cells arranged in the circumferential direction, and each of the second unit cells of the second cylindrical part has an arc shape,
wherein each of the second unit cells of the second cylindrical part comprises:
a first negative-electrode metal layer having a first surface located in a circumferential direction, a second surface facing the first surface and located in the circumferential direction, a third surface between the first surface and the second surface and located in a radial direction, and a fourth surface facing the third surface and located in the radial direction;
a first electrolyte film and a first positive-electrode layer sequentially disposed on the first surface of the first negative-electrode metal layer;
and
a second electrolyte film and a second positive-electrode layer sequentially disposed on the second surface of the first negative-electrode metal layer.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/679,844Filed 11 Nov 2019 · continuation
Priority: KR 10-2016-012714230 Sep 2016
Published: US 2020/0076030 A15 Mar 2020
Granted: 31 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01M 12/08
Hybrid cells; Manufacture thereof: composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
H01M 4/13
Electrodes composed of, or comprising, active material: electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators;…
H01M 50/107
Characterised by their shape or physical structure: having curved cross-section, e.g. round or elliptic
H01M 50/1385
Adapted for specific cells, e.g. electrochemical cells operating at high temperature: hybrid cells

Family

Application15/489,800Parent of this continuation · filed 18 Apr 2017
US 2020/0076030 A1Pre-grant publication · published 5 Mar 2020
US 10,505,242 B2Parent of this continuation
US 2018/0097267 A1Published application
US 11,108,104 B2This patent

From the US filing history. Foreign family members aren’t listed.