US 2026/0302337 A1Published application

Methods of manufacturing battery components, assemblies thereof, and solid state batteries

AssigneesLG Energy Solution, Ltd., The Regents of the University of California

InventorsJung-Pil Lee, Ji Young Kim, Zheng Chen, Dongju Lee, Yuju Jeon

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Abstract

Methods of manufacturing battery components, assemblies thereof, and solid state batteries are provided. The method comprises providing a jig comprising a female device and a male device and providing a laminated assembly comprising an active material layer and a solid state electrolyte (SSE) layer formed of an SSE composition. The method comprises placing the laminated assembly over the surface of the female device such that the SSE layer faces a surface of the female device and the active material layer faces the male device. The method comprises moving the male device and the female device relative to one another along the axis, which applies a shear force to the laminated assembly and cuts a portion thereof to provide a cut assembly comprising a cut active material layer and a cut SSE layer.

Claims20

Dependent claims

A method of manufacture of a battery component, the method comprising:

providing a jig comprising a female device and a male device arranged relative to each other and configured to move along an axis relative to each other, wherein the female device comprises a surface and a recess formed into the surface and configured to receive a leading portion of the male device as the male device relatively moves toward the female device;
providing a laminated assembly comprising:
an active material layer formed of an active material composition and comprising a first material side and a second material side facing away from and being generally parallel to the first material side, and
a solid state electrolyte (SSE) layer formed of an SSE composition and comprising a first SSE side and a second SSE side facing away from and being generally parallel to the first SSE side, wherein the active material layer is placed on the SSE layer such that the first material side contacts the second SSE side;
placing the laminated assembly over the surface of the female device
such that the first SSE side of the SSE layer faces the surface of the female device and the second material side of the active material layer faces away from the female device and faces the male device, and
such that the laminated assembly covers the recess of the female device;
moving the male device and the female device relative to one another along the axis, which applies a shear force to the laminated assembly until at least part of the leading portion of the male device enters the recess of the female device and cuts a portion thereof to provide a cut assembly comprising a cut active material layer and a cut SSE layer,
wherein the cut active material layer comprises:
a first cut material side,
a second cut material side facing away from the first cut material side, and
a third cut material side extending between an edge of the first cut material side and an edge of the second cut material side;
and
wherein the cut SSE layer comprises:
a first cut SSE side,
a second cut SSE side facing away from the first SSE side and being in contact with the first cut material side of the cut active material layer,
a third cut SSE side extending between an edge of the first cut SSE side and an edge of the second cut SSE side,
wherein the SSE composition is exposed on the third cut SSE side and extends between the edge of the first cut SSE side and the edge of the second cut SSE side,
wherein the SSE composition exposed on the third cut SSE side continuously extends beyond the edge of the second cut SSE side into the third cut material side to cover at least part of the third cut material side of the cut active material layer.

16 more elements

An assembly comprising:

an active material layer formed of an active material composition and comprising:
a first material side,
a second material side facing away from and being generally parallel to the first material side, and
a third material side extending between an edge of the first material side and an edge of the second material side;
and
a solid state electrolyte (SSE) layer formed of an SSE composition and comprising:
a first SSE side,
a second SSE side facing away from and being generally parallel to the first SSE side,
a third SSE side extending between an edge of the first SSE side and an edge of the second SSE side,
wherein, the active material layer is placed on the SSE layer such that the first material side contacts the second SSE side,
wherein the SSE composition is exposed on the third SSE side and extends between the edge of the first SSE side and the edge of the second SSE side,
wherein the SSE composition exposed on the third SSE side continuously extends beyond the second SSE side into the third material side to cover at least part of the third material side of the active material layer.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/459,002Filed 26 Jan 2026
Priority: 31 Mar 2025
Published: 1 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H01M 10/0562
The electrolyte being constituted of inorganic materials only: solid materials
H01M 4/04
Electrodes composed of, or comprising, active material: processes of manufacture in general
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 2220/10
Batteries for particular applications: batteries in stationary systems, e.g. emergency power source in plant