# US 10,873,113 B2 · Method for controlling the temperature of an electrochemical energy storage system

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- Number: US 10,873,113 B2
- Document ID: US10873113B2
- Status: Granted
- Kind: B2
- Application number: 15/942,990
- Filed: 2018-04-02
- Published: 2018-10-04
- Granted: 2020-12-22
- Earliest claimed: 2017-04-03
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Alexander Lautenschlaeger; Federico Brivio; Jens Koerner; Klaus-Juergen Schuler; Xuwen Li
- Web page: https://patentgrep.com/patent/US10873113B2

## CPC

- H01M 10/633: characterised by algorithms, flow charts, software details or the like
- B60L 58/21: having the same nominal voltage
- B60L 58/26: by cooling
- B60L 58/27: by heating
- H01M 10/486: {for measuring temperature}
- H01M 10/617: for achieving uniformity or desired distribution of temperature
- H01M 10/625: Vehicles
- H01M 10/6563: with forced flow, e.g. by blowers
- H01M 10/663: the system being an air-conditioner or an engine
- B60L 2240/545: Temperature
- Y02E 60/10: Energy storage using batteries
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Method for controlling the temperature of an electrochemical energy storage system (100), wherein the energy storage system (100) comprises at least two electrochemical energy stores (101, 102) and an air-conditioning apparatus (114) having an air-conditioning circuit (115) for air-conditioning the energy store (101, 102).

## Claims

### Claim 1

A method for controlling the temperature of an electrochemical energy storage system (100), wherein the energy storage system (100) has a first electrochemical energy store (101) and a second electrochemical energy store (102), a first temperature sensor, a second temperature sensor, a controller, and an air-conditioning apparatus (114) having an air-conditioning circuit (115) for air-conditioning the first and second energy stores (101, 102), the method comprising:
(S101) capturing, via the first temperature sensor, a first temperature (T1)-of the first electrochemical energy store (101);
(S102) capturing, via the second temperature sensor, a second temperature (T2) of the second electrochemical energy store (102);
determining a temperature control requirement according to the first temperature (T1) and the second temperature (T2); and
(S103) heating the second electrochemical energy store (102) using an excess amount of heat of the first electrochemical energy store (101) by operating the air-conditioning apparatus (114) according to the temperature control requirement.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
(S104) controlling the air-conditioning apparatus (114) to heat (T+++, T++, T+) the first and second energy stores (101, 102) by the air-conditioning circuit (115) if the first temperature (T1) and the second temperature (T2) are in a first temperature range.

### Claim 3 (depends on 1)

The method according to claim 1, further comprising:
(S105) controlling the air-conditioning apparatus (114) to cool (T−−−, T−−, T−) the energy stores (100, 101) by the air-conditioning circuit (115) when the first temperature (T1) and the second temperature (T2) are in a second temperature range.

### Claim 4 (depends on 1)

The method according to claim 1, further comprising:
(S106) controlling the air-conditioning apparatus (114) to circulate (Tc) the air-conditioning circuit (115) if the first temperature (T1) and the second temperature (T2) are in a third temperature range.

### Claim 5 (depends on 1)

The method according to claim 1, further comprising:
(S107) stipulating a circulation direction and/or a circulation speed of the air-conditioning circuit (115).

### Claim 6 (depends on 1)

The method according to claim 1, further comprising:
(S108) switching off (S0) the air-conditioning apparatus (114) when the first temperature (T1) and the second temperature (T2) are in a fourth temperature range, or if no temperature control requirement is captured.

### Claim 7 (depends on 1)

The electrochemical energy storage system (100) according to claim 1, wherein at least one of the electrochemical energy stores (101, 102) comprises at least one lithium ion, lithium sulfur, lithium air and/or lithium polymer cell, a nickel metal hydride and/or lead acid battery, a capacitor and/or a solid electrolyte battery.

### Claim 8

An electrochemical energy storage system comprising:
a first electrochemical energy store;
a second electrochemical energy store;
a first temperature sensor;
a second temperature sensor;
an air-conditioning apparatus having an air-conditioning circuit for air-conditioning the first and second energy stores;
and a controller programmed to capture, via the first temperature sensor, a first temperature of the first electrochemical energy store;
capture, via the second temperature sensor, a second temperature of the second electrochemical energy store;
determine a temperature control requirement according to the first temperature and the second temperature; and
heat the second electrochemical energy store using an excess amount of heat of the first electrochemical energy store by operating the air-conditioning apparatus according to the temperature control requirement.