Thermal Management System Architecture for Metal Air Batteries

Patent metadata

Field	Value
Publication number	US-2024072337-A1
Application number	US-202318453899-A
Country	US
Kind code	A1
Filing date	Aug 22, 2023
Priority date	Aug 23, 2022
Publication date	Feb 29, 2024
Grant date	—

Abstract

Systems, methods, and devices of the various embodiments may provide configurations for components of battery systems configured for thermal management. Systems, methods, and devices of the various embodiments may include a battery system with a plurality of metal-air batteries that each includes at least one air electrode, a metal electrode, a liquid electrolyte separating the at least one air electrode from the metal electrode, and a vessel including the liquid electrolyte. In various embodiments, the battery system may also include an air circulation system, a heating, ventilation, and air conditioning (HVAC) unit, and/or a liquid cooling system.

First claim

What is claimed is:

1 . A battery system comprising:
a plurality of metal-air batteries, wherein each metal-air battery comprises:
at least one air electrode;
a metal electrode;
a liquid electrolyte separating the at least one air electrode from the metal electrode; and
a vessel including the liquid electrolyte;
an enclosure housing the plurality of metal-air batteries; and an air circulation system, comprising:
at least one fan configured to cycle air within the enclosure;
wherein the plurality of metal-air batteries are configured to pull conditioned air from the enclosure and/or be pushed conditioned air from the enclosure.

2 . The battery system of claim 1 , wherein the at least one fan comprises an exhaust blower configured to move hot air from the plurality of metal air batteries through channels to outside the enclosure.

3 . The battery system of claim 1 , wherein the air circulation system further comprises an evaporation cooler at an inlet of a duct to condition air entering the enclosure.

4 . The battery system of claim 1 , wherein the at least one fan is positioned at the inlet of a duct entering the enclosure or at an outlet of a duct leading from the enclosure.

5 . The battery system of claim 1 , wherein the air circulation system further comprises:
an air heating coil; and a recirculation path valve configured to move the air heated by the air heating coil through the enclosure when operating below a threshold temperature.

6 . The battery system of claim 1 , wherein the metal-air batteries comprise iron-air type battery cells, zinc-air type battery cells, and/or lithium-air battery cells.

7 . A battery system comprising:
a plurality of metal-air batteries, wherein each metal-air battery comprises:
at least one air electrode;
a metal electrode;
a liquid electrolyte separating the at least one air electrode from the metal electrode; and
a vessel including the liquid electrolyte;
an enclosure housing the plurality of metal-air batteries; and an air circulation system, comprising:
a heating, ventilation, and air conditioning (HVAC) unit configured to pump cooled air into the enclosure,
wherein the plurality of metal-air batteries are configured to:
pull the cooled air from the enclosure; and
exhaust hot air.

8 . The battery system of claim 7 , wherein the hot air exhausted from the metal-air batteries is vented outside the enclosure.

9 . The battery system of claim 7 , wherein the hot air exhausted from the metal-air batteries is recirculated to the HVAC unit.

10 . The battery system of claim 7 , further comprising at least one fan configured to move air through channels within the enclosure.

11 . The battery system of claim 7 , wherein the HVAC unit comprises an evaporator, a compressor, a condenser, at least one fan, and a refrigerant expansion device.

12 . The battery system of claim 7 , wherein the metal-air batteries comprise iron-air type battery cells, zinc-air type battery cells, and/or lithium-air battery cells.

13 . A battery system comprising:
a plurality of metal-air batteries, wherein each metal-air battery comprises:
at least one air electrode;
a metal electrode;
a liquid electrolyte separating the at least one air electrode from the metal electrode; and
a vessel including the liquid electrolyte;
an enclosure housing the plurality of metal-air batteries; and a liquid cooling system, comprising:
a set of cooling channels on the surface of the plurality of metal-air batteries;
a pump configured to move liquid through the cooling channels to condition the plurality of metal-air batteries;
a heat rejection unit; and
a liquid heating unit,
wherein the heat rejection unit and the liquid heating unit are configured to treat the liquid used to condition the plurality of metal-air batteries, and
wherein the treated liquid is recirculated to the set of cooling channels.

14 . The battery system of claim 13 , wherein the liquid heating unit comprises a water immersion heater outside the enclosure.

15 . The battery system of claim 13 , wherein the heat rejection unit comprises a radiator and a fan.

16 . The battery system of claim 13 , wherein the heat rejection unit comprises a cooling tower.

17 . The battery system of claim 13 , wherein the heat rejection unit comprises a chiller circuit, and wherein the chiller circuit includes a compressor, a condenser, a chiller, a fan, and a refrigerant expansion device.

18 . The battery system of claim 13 , wherein the metal-air batteries comprise iron-air type battery cells, zinc-air type battery cells, and/or lithium-air battery cells.

Assignees

• Form Energy Inc

Inventors

• Ocampo Jaime Andres
• Friesen Grant Harrison
• Vasavada Jhalak Joshipura

Classifications

• H01M12/02 Primary

  Details (of electrodes H01M4/00; of non-active parts H01M50/00) · CPC title

• H01M8/04014 Primary

  Heat exchange using gaseous fluids; Heat exchange by combustion of reactants · CPC title

• H01M8/04059

  Evaporative processes for the cooling of a fuel cell · CPC title

• H02J3/32

  using batteries or super capacitors with converting means · CPC title

• H01M2220/10

  Batteries in stationary systems, e.g. emergency power source in plant · CPC title