Charging strategies for mitigating lithium plating in electrified vehicle batteries

A charging strategy and vehicle technology, applied in electric vehicle charging technology, battery/fuel cell control devices, batteries, etc., can solve problems such as performance degradation of lithium-plated batteries, improve customer satisfaction, reduce mileage anxiety, and extend battery life The effect of the operation

Active Publication Date: 2022-03-18
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these charging strategies can lead to lithium plating and associated battery performance degradation, especially when charging is performed at low temperatures

Method used

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  • Charging strategies for mitigating lithium plating in electrified vehicle batteries
  • Charging strategies for mitigating lithium plating in electrified vehicle batteries
  • Charging strategies for mitigating lithium plating in electrified vehicle batteries

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Embodiment Construction

[0014] As required, detailed embodiments are disclosed herein; however, it is to be understood that the disclosed embodiments are merely representative of claimed subject matter and may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously utilize the embodiments. As will be understood by persons of ordinary skill in the art, various features shown and described with reference to any one figure may be combined with features shown in one or more other figures to produce a feature not explicitly shown or described. Example. The combinations of features shown provide representative embodiments for typical applications. Various combinations and modifications of the f...

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Abstract

The present disclosure relates to a charging strategy for mitigating lithium plating in electrified vehicle batteries. A vehicle includes a traction battery and a controller in communication with the traction battery and configured to control the traction battery in response to a user selected charging strategy of a plurality of charging strategies having different charging rates. Charging of the battery, the user selected charging strategy is based on the detection of lithium plating in the traction battery. A method implemented by a vehicle controller in a vehicle having a traction battery may include controlling, by the controller, charging of the traction battery in response to a user selected charging strategy selected from a plurality of available charging strategies, Each of the plurality of available charging strategies has a different charging rate and is displayed on the user interface in response to detection of lithium plating in the traction battery, at least one charging strategy being selected with additional lithium plating is associated.

Description

technical field [0001] The present disclosure relates to charging strategies for mitigating lithium plating in electrified vehicle batteries. Background technique [0002] Electrified vehicles, such as hybrid vehicles, plug-in hybrid vehicles, and battery electric vehicles, use electric machines powered by traction batteries to drive the vehicle drivetrain. For example, charging and discharging of a battery results in electrochemical processes that affect the charge available to power the vehicle and can vary with environmental conditions and operating conditions (e.g., such as battery state of charge (SOC), temperature, cell balance, etc. and charge / discharge rate or current). In lithium-ion (Li-ion) batteries, under some operating conditions, metallic lithium can deposit on the anode of the battery cell, which can degrade battery performance. Batteries are particularly susceptible to this process, known as lithium plating, at low operating temperatures and high charging ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/10B60L58/12B60L58/15B60L58/27
CPCB60L58/12B60L58/10B60L2240/54B60L58/21B60L58/27H01M10/0525H01M10/441H01M2220/20B60L58/15Y02T90/16Y02E60/10Y02T10/70Y02T90/12Y02T10/7072B60L53/62H01M10/46
Inventor 何川李峰毛睿齐
Owner FORD GLOBAL TECH LLC
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