US 2023/0411705 A1 · LITHIUM IRON PHOSPHATE BATTERY MODULE

Abstract

Disclosed is a lithium iron phosphate module having seventy-two (72) 26650 lithium iron phosphate cylindrical cells arranged in an 8S9P architecture, with the “S” being the number of supercells connected in series and the “P” being the number of cells connected in parallel. A five-layer clad material forms at least two current collector plates that are interconnected to the lithium iron phosphate cylindrical cells by a resistive welding process. The current collector plates each have a tab custom stamped on the five-layer clad material that is connected to a battery management system by running a voltage sense wire with a quick disconnect tab on the end from the battery management system to the custom stamped tab to monitor and balance the 24V output and 34Ah current of the cells in the module. At least two cell holders enclose the lithium iron phosphate cylindrical cells and the current collector plates.

Claims40

Dependent claims

A lithium iron phosphate module comprising:

a plurality of lithium iron phosphate cylindrical cells;
at least two current collector plates, wherein the plurality of lithium iron phosphate cylindrical cells are interconnected to the current collector plates;
and
at least two cell holders enclosing the lithium iron phosphate cylindrical cells and the current collector plates.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/807,964Filed 21 Jun 2022

Published

21 Dec 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

H01M 10/425
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: structural combination with electronic…
H01M 4/5825
Of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures,…:…
H01M 4/661
Selection of materials: metal or alloys, e.g. alloy coatings
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

Lithium iron phosphate battery module

Life of this patent

Lithium iron phosphate battery module

Life of this patent

Abstract

Claims40