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Method for Revitalizing and Increasing Lithium Ion Battery Capacity

A capacity and battery technology, applied in the direction of battery, battery circuit device, secondary battery repair/maintenance, etc., can solve the problem of large predetermined quantity

Active Publication Date: 2015-12-30
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The predetermined voltage may be greater than zero volts by a predetermined amount

Method used

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  • Method for Revitalizing and Increasing Lithium Ion Battery Capacity
  • Method for Revitalizing and Increasing Lithium Ion Battery Capacity
  • Method for Revitalizing and Increasing Lithium Ion Battery Capacity

Examples

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Embodiment Construction

[0012] Embodiments of the disclosure are described herein. It is to be understood, however, that the disclosed embodiments are merely examples and that other embodiments may take 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 employ the present invention. As will be understood by those 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 the embodiment. The combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of this d...

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Abstract

A hybrid or electric vehicle includes a lithium-ion battery and a controller. The controller is programmed to discharge the battery through an electrical load to a predetermined voltage less than a voltage associated with zero state of charge such that relative degrees of lithiation associated with the electrodes of the battery change for at least one state of charge resulting in an increase in battery maximum capacity. The controller may be on-board or off-board of the vehicle. The electrical load may be part of the vehicle or external to the vehicle.

Description

technical field [0001] The present application generally relates to increasing the battery charge capacity of lithium-ion batteries. Background technique [0002] Hybrid and electric vehicles rely on traction batteries to provide energy for propulsion and accessory loads. Traction batteries can be composed of various chemical components. Traction batteries can be made from lithium-ion compounds. A characteristic of lithium-ion batteries is that the capacity of the battery tends to decrease as the battery ages. Batteries can be subjected to repeated charge and discharge cycles over time. As the battery charge capacity decreases, less energy is stored in the battery, which may result in a decrease in vehicle performance. For example, an electric vehicle may experience fewer fluctuations throughout the charging process. Hybrid vehicles may experience a reduction in fuel economy because the gasoline engine may need to run for a longer period of time. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44
CPCH01M10/42H01M10/44B60L2240/545B60L2240/547B60L2240/549H01M10/425H01M2220/20B60L58/16B60L58/21H02J7/0063H02J7/0069H02J2310/48Y02T10/70Y02E60/10H02J7/007182B60L58/13
Inventor 爱德华·瓦安·德克志·派克达恩·贝尔纳迪
Owner FORD GLOBAL TECH LLC