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Energy storage system based on battery packs

A technology of energy storage system and battery pack, which is applied to the arrangement of multiple synchronous batteries, battery circuit devices, electric vehicles, etc., and can solve the problems of high cost, time-consuming, and high cost

Inactive Publication Date: 2017-08-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the process of screening, sorting, testing and reconfiguring secondary battery packs is costly and time consuming
And technically, only battery packs with approximately the same characteristics (such as chemical characteristics, capacity, and even shape) can be reused in the same system, which makes it difficult and expensive to reconfigure and reuse different types of used battery packs. high

Method used

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  • Energy storage system based on battery packs
  • Energy storage system based on battery packs
  • Energy storage system based on battery packs

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Embodiment Construction

[0027] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings and embodiments. The embodiments here are only used to illustrate the principle of the present invention, and do not limit the scope of the present invention.

[0028] The energy storage system according to the present invention aims at the reuse of battery packs before they are discarded, especially secondary battery packs used in electric bicycles, electric motorcycles, hybrid electric vehicles or electric vehicles. This system aims to simplify the reuse The process of using the secondary battery pack and reducing the cost of reusing the secondary battery pack. Secondary battery packs may be manufactured by different manufacturers or include different chemical compositions or have different characteristic parameters, including but not limited to standard voltage, charge termination voltage, energy capacity, maximum allowable charging current, maximum allo...

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PUM

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Abstract

An energy storage system (1000) is provided. The energy storage system (1000) comprises a master BMS (100), one or more battery packs (200, 300, 400) each comprising a corresponding slave BMS (220, 320, 420), a DC bus (600) which is connected with terminals of each battery pack (200, 300, 400), and a communication bus (700) for connecting each battery pack (200, 300, 400) with a corresponding internal communication port of the master BMS (100), wherein the master BMS (100) receives battery variables of each battery pack (200, 300, 400) from the corresponding slave BMS (220, 320, 420) via the communication bus (700), calculates status of each battery pack (200, 300, 400) based on algorithms stored in a master controller of the master BMS (100), makes a decision on behavior of each battery pack (200, 300, 400), and switches on or off the battery pack (200, 300, 400) with a power electronics module of the master BMS (100) to charge or discharge the battery pack (200, 300, 400).

Description

Technical field [0001] The invention relates to the field of energy storage, in particular to an energy storage system composed of a battery pack. Background technique [0002] Electric vehicles (EV), as one of the solutions to reduce greenhouse gas emissions of vehicles, are becoming more and more popular due to their improved energy efficiency. The power source of electric vehicles is a rechargeable chemical power source, including battery packs. Therefore, more and more battery packs used in electric vehicles are introduced into the electric vehicle market. The battery pack is replaced after being used on the EV. Typically, the current solution is that the EV retailer / service center discards the used battery packs at the refurbishment facility, where the used, that is, the battery cells in the waste battery pack, are screened, classified, and tested , Finally, it is reconfigured for secondary use in fixed applications. After that, each battery cell in the used battery pack ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28
CPCH02J7/0018H02J7/0048H02J7/00047Y02T10/70H02J7/0013
Inventor 张明亮
Owner ROBERT BOSCH GMBH