METHOD FOR EVALUATING BATTERY, AND EVALUATION APPARATUS THEREFOR

• US 20090251151A1
• Filed: 03/06/2009
• Published: 10/08/2009
• Est. Priority Date: 03/31/2008
• Status: Abandoned Application

• Current Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
• Original Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
• Inventors: MIYASHITA, Takuya
• Application Number:
  US12/399,787
• Publication Number:
  US 20090251151A1
• Time in Patent Office: Days
• US Class Current: 324/426
• CPC Class Codes: G01R 31/367 Software therefor, e.g. for battery testing using modelling or look-up tables
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/4285 Testing apparatus
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• 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: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02W 30/84 Recycling of batteries or fuel cells

Abstract

A battery evaluation method includes: determining a weighting coefficient to be assigned to each of performance capabilities of a battery for each field of application where the battery is used; making amendments to results of measurement of the respective performance capabilities acquired from the battery by means of the weighting coefficient; summating the weighted results of the respective performance capabilities amended by the weighting coefficient for each field of application to compute an application-specific evaluation value; and evaluating the battery for each application based on the application-specific evaluation value.

Claims

1. A battery evaluation method comprising:

determining a weighting coefficient to be assigned to each of performance capabilities of a battery for each field of application where the battery is used;

making amendments to results of measurement of the respective performance capabilities acquired from the battery by means of the weighting coefficient;

summating the weighted results of the respective performance capabilities amended by the weighting coefficient for each field of application to compute an application-specific evaluation value; and

evaluating the battery for each application based on the application-specific evaluation value.

2. A battery evaluation method comprising:

determining a weighting coefficient to be assigned to each of performance capabilities of a battery for each field of application where the battery is used;

making amendments to results of measurement of the respective performance capabilities acquired from the battery by means of the weighting coefficient;

summating the weighted results of the respective performance capabilities amended by the weighting coefficient for each field of application to compute an application-specific evaluation value; and

ranking the battery in a group of batteries for each field of application based on the application-specific evaluation value.

3. A battery evaluation apparatus comprising:

a measurement section, configured to measure respective performance capabilities of a battery;

a storage section, configured to store a weighting coefficient to be assigned to each of performance capabilities of a battery measured by the measurement section for each field of application where the battery is used;

a weighting section, configured to make amendments to results of measurement of the respective performance capabilities of the battery measured by the measurement section by means of the weighting coefficient;

a summation section, configured to summate the weighted results amended by the weighting section for each field of application to compute an application-specific evaluation value; and

an evaluation section, configured to evaluate the battery for each application based on the application-specific evaluation value computed by the summation section.