# US 2019/0356012 A1 · Solid-state electrolyte for a lithium battery

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- Number: US 2019/0356012 A1
- Document ID: US20190356012A1
- Status: Published application
- Kind: A1
- Application number: 16/530,771
- Filed: 2019-08-02
- Published: 2019-11-21
- Earliest claimed: 2012-09-28
- Assignees: QuantumScape Corporation
- Applicants: QuantumScape Corporation
- Inventors: Weston Arthur Hermann
- Web page: https://patentgrep.com/patent/US20190356012A1

## CPC

- B60L 58/15: Preventing overcharging
- B60L 3/0046: {relating to electric energy storage systems, e.g. batteries or capacitors}
- B60L 3/12: Recording operating variables {; Monitoring of operating variables}
- B60L 50/64: Constructional details of batteries specially adapted for electric vehicles
- B60L 50/66: {Arrangements of batteries}
- B60L 53/11: {DC charging controlled by the charging station, e.g. mode 4}
- B60L 58/13: Maintaining the SoC within a determined range
- B60L 58/14: Preventing excessive discharging
- B60L 58/18: of two or more battery modules
- B60L 58/21: having the same nominal voltage
- B60L 58/26: by cooling
- B60L 58/27: by heating
- H01M 10/0481: {Compression means other than compression means for stacks of electrodes and separators}
- H01M 10/441: {for several batteries or cells simultaneously or sequentially}
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 7/342: {The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68)}
- H02J 7/875: {Charging or discharging for charge maintenance, battery initiation or rejuvenation}
- B60L 2240/545: Temperature
- B60L 2240/547: Voltage
- B60L 2240/549: Current
- H01M 10/052: Li-accumulators
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- 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
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Various embodiments herein provide methods and apparatus for conditioning a battery. The conditioning may be undertaken to restore charge capacity or power capability, especially when practiced on a battery having a lithium negative electrode and/or a positive electrode having a conversion material. In one embodiment, the conditioning method includes applying a substantially constant current or power until a conditioning voltage is reached, where the conditioning voltage is higher than the maximum voltage used during normal cycling. The method further includes continuing to charge the battery at the conditioning voltage until a maximum conditioning charge is reached. Next, the method includes discharging the battery to about the maximum charge voltage prior to using the battery in an end use. Also provided is a conditioning apparatus that is configured to perform the conditioning method.

## Claims

### Claim at position 1

-47. (canceled)

### Claim 48

A lithium ion battery comprising:
a thermally interruptible solid-state electrolyte;
a positive electrode comprising lithium iron phosphate; and
a negative electrode comprising lithium metal.