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Charging methods for nickel-zinc battery packs

A battery charging, nickel-zinc battery technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as slow battery charging

Inactive Publication Date: 2009-09-09
POWERGENIX SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the high impedance allows only low current at a constant voltage, these batteries can only be charged slowly

Method used

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  • Charging methods for nickel-zinc battery packs
  • Charging methods for nickel-zinc battery packs
  • Charging methods for nickel-zinc battery packs

Examples

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Embodiment Construction

[0035] introduce

[0036] In the following detailed description of the invention, numerous specific examples are set forth in order to provide a thorough understanding of the invention. However, as will be apparent to those skilled in the art, the invention may be practiced without these specific details or by utilizing alternative elements or processes within the spirit and scope of the invention. In other instances, well-known procedures, procedures, and components have not been described in detail as not to unnecessarily obscure aspects of the invention.

[0037] Although many charging schemes have been proposed, it should be understood that not all charging methods need to be configured on the same charger. Chargers may employ these methods individually or in combination. Furthermore, the charger may or may not allow user intervention to provide manual selection of charging algorithms or even selection of parameters within a particular charging algorithm. In particular,...

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Abstract

The present invention discloses a temperature-compensated constant voltage battery charging algorithm charges batteries quickly and safely. Charging algorithms also include methods to recondition batteries after storage and to correct cell imbalances in a battery pack. A battery charger able to perform these functions is also disclosed.

Description

technical field [0001] The present invention relates to rechargeable battery technology, and more particularly to nickel zinc rechargeable battery cells and batteries. Still more particularly, the present invention relates to a method of charging a sealed nickel-zinc rechargeable battery cell. Background technique [0002] The charging method of a NiZn battery is very important to its performance. Performance factors, such as battery life, specific capacity, charging time, and cost, are all affected by the charging method. Charger designers must balance the need for fast charging and thus quick return to service, low cost chargers, and other needs such as cell balancing, increased lifetime, and reserved capacity. [0003] Nickel-zinc battery charging poses special challenges because the nickel electrode charging potential lies very close to the oxygen evolution voltage. During battery charging, the oxygen evolution process competes with the nickel electrode charging proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/16H02J7/00
CPCH02J7/0073H02J7/0091H02J7/0071H02J7/007194H02J7/00H02J7/16
Inventor E·阿尔杰J·菲利普斯R·本德特S·莫哈那塔
Owner POWERGENIX SYST
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