RECYCLED SECONDARY BATTERY SUPPLY FORECAST SYSTEM AND RECYCLED SECONDARY BATTERY SUPPLY FORECAST USAGE

• US 20140019001A1
• Filed: 03/23/2012
• Published: 01/16/2014
• Est. Priority Date: 03/29/2011
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Nishizawa, Toshihiro
• Granted Patent: US 9,791,514 B2
• Time in Patent Office: Days
• US Class Current: 701/31.9
• CPC Class Codes: B60L 58/16 responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
• CPC Class Codes: G01R 31/385 Arrangements for measuring battery or accumulator variables for monitoring G01R31/382
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 10/54 Reclaiming serviceable parts of waste accumulators
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02W 30/84 Recycling of batteries or fuel cells

Abstract

A recycled battery supply forecast unit 201 of a battery management server 20 receives, from a plurality of vehicles 40, performance information of a secondary battery 403 mounted on each of the vehicles 40 and state information of the vehicle for determining a life of the vehicle 40, makes a forecast of an end of life of the vehicle 40 by using history of the state information of that vehicle, and makes a forecast of performance of the secondary battery 403 at the end of life of that vehicle 40 by using history of the performance information of the secondary battery 403. In addition, a forecast is made of a supply quantity of recyclable secondary batteries at a certain point in time in the future based on a forecast result of the performance of the secondary battery 203 at the end of life of each vehicle 40.

Claims

1. A recycled secondary battery supply forecast system comprising:

a communication unit which receives performance information of a secondary battery mounted on a vehicle and state information of the vehicle; and

a battery performance forecast unit which makes a forecast of an end of life of the vehicle by using history of the state information of that vehicle, and makes a forecast of performance of the secondary battery at the end of life of that vehicle by using history of the performance information of the secondary battery.

2. The recycled secondary battery supply forecast system according to claim 1,

wherein the state information of the vehicle indicates a travel distance of the vehicle, and the battery performance forecast unit makes a forecast of the end of life of the vehicle by calculating a timing of reaching a predetermined travel distance from an increasing trend of the travel distance of that vehicle.

3. The recycled secondary battery supply forecast system according to claim 1,

wherein the state information of the vehicle indicates used hours of the vehicle, and the battery performance forecast unit makes a forecast of the end of life of the vehicle by calculating a timing of reaching predetermined used hours from an increasing trend of the used hours of that vehicle.

4. The recycled secondary battery supply forecast system according to claim 1,

wherein the performance information of the secondary battery indicates a total capacity of the secondary battery, and the battery performance forecast unit makes a forecast of the performance of the secondary battery at the end of life of the vehicle by calculating the total capacity of the secondary battery at the end of the life of that vehicle from a decreasing trend of the total capacity of the secondary battery.

5. The recycled secondary battery supply forecast system according to claim 1,

wherein the performance information of the secondary battery indicates a maximum output current of the secondary battery, and the battery performance forecast unit makes a forecast of the performance of the secondary battery at the end of life of the vehicle by calculating the maximum output current of the secondary battery at the end of the life of that vehicle from a decreasing trend of the maximum output current of the secondary battery.

6. The recycled secondary battery supply forecast system according to claim 1,

wherein the timing of receiving the state information of the vehicle and the performance information of the secondary battery from the vehicle is at least one of the following:

after lapse of a given period of time after previous reception;

upon completion of charging of the secondary battery; and

upon termination of use of the vehicle.

8. The recycled secondary battery supply forecast system according to claim 1 further comprising:

a battery supply quantity forecast unit which makes a forecast of a supply quantity of recyclable secondary batteries at a certain point in time in the future based on a forecast result of the performance of the secondary battery.

7. A recycled secondary battery supply forecast method, comprising the steps of:

receiving performance information of a secondary battery mounted on a vehicle and state information of the vehicle;

making a forecast of an end of life of the vehicle by using history of the state information of that vehicle; and

making a forecast of performance of the secondary battery at the end of life of that vehicle by using history of the performance information of the secondary battery.