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Energy storage device for loads having variable power rates

An energy storage and storage device technology, applied in the field of components and devices, can solve the problems of undisclosed rechargeable, unusable load, low total energy output, etc., and achieves the effect of improving charging efficiency and being easy to reproduce

Inactive Publication Date: 2007-03-14
ELECTROVAYA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Kallman does not disclose that the primary lithium / / thionyl chloride battery is rechargeable
At the same time, Kallman's components are designed to be small and have a rather low overall energy output, making them impractical for larger loads

Method used

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  • Energy storage device for loads having variable power rates
  • Energy storage device for loads having variable power rates
  • Energy storage device for loads having variable power rates

Examples

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Embodiment Construction

[0026] As mentioned above, in a preferred embodiment of the invention, an energy storage element is provided comprising an energy cell connected to a power cell. The energy battery has high energy density and high specific energy so that large amounts of energy can be conveniently and efficiently stored. The energy cell can also be recharged from an external power source. The energy cell can provide a fairly constant energy output, but with a lower current level. In other words, the energy cell performs the primary function of efficiently storing large amounts of energy without being bulky or taking up a lot of space, but may not be able to provide high or variable current levels, or variable power output.

[0027] Instead, the traction battery is designed to have a variable power output and deliver short, high current pulses. For example, the traction battery can provide higher bursts of power at the short, high current pulses required by the electrical load, such as the po...

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PUM

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Abstract

An electrical energy storage device for storing electrical energy and supplying the electrical energy to a driving motor at different power levels is disclosed. The electrical storage device has an energy battery connected to a power battery. The energy battery has a higher energy density than the power battery. However, the power battery can provide electrical power to the electrical motor at different power rates, thereby ensuring that the motor has sufficient power and current when needed. The power battery is continuously recharged by the energy storage battery. In this way, the power battery temporarily stores electrical energy received from the energy battery and provides the electrical energy at the different power rates as required by the motor. The energy storage device can be releasably connected to an external power source in order to recharge both batteries. Both batteries can be recharged independently to optimize the recharging and lifetime characteristics of the batteries.

Description

technical field [0001] The invention relates to a device, a component and a method for storing electric energy and supplying the electric energy to an electric load according to different powers. More particularly, the present invention relates to an apparatus, device and method for supplying variable power to an electrical load (such as an electric motor or engine used to drive a vehicle) using a compound battery. Background technique [0002] Various methods of storing and providing electrical energy to drive an electrical load (eg, an electric motor) have been proposed in the past. For example, different types of batteries have been used in the past to power electric vehicles, including lead-acid, nickel-cadmium (Ni-Cd), and nickel-metal composite (Ni-MH) batteries. However, each type of battery has unique advantages and disadvantages. [0003] For example, lead-acid batteries have the advantage of being able to provide large bursts of power when needed. In addition, l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18H02J7/14H02J7/34B60L1/00H02J7/00
CPCY02T10/646Y02T10/7055Y02T10/7005Y02T90/14B60L11/1861B60L11/1816Y02T10/7044B60L11/1868Y02E60/122Y02T10/7088Y02T10/705B60L11/1805Y02T10/648H02J7/0013Y02T90/121Y02E60/126B60L3/0046B60L7/12B60L2210/30B60L2240/545B60L2250/10Y02T10/70Y02T10/7072B60L53/14B60L50/16B60L50/52B60L58/20B60L58/26B60L58/15B60L58/24Y02T10/64Y02T10/72Y02T90/12
Inventor 山卡·达斯古普塔詹姆斯·K·杰卡伯斯雷凯许·玻拉
Owner ELECTROVAYA
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