CALCULATION APPARATUS AND CALCULATION METHOD

• US 20150268306A1
• Filed: 03/11/2015
• Published: 09/24/2015
• Est. Priority Date: 03/18/2014
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: SUGIYAMA, Nobukatsu, ISHII, Ena, MORITA, Tomokazu, YOSHIDA, Mitsunobu
• Granted Patent: US 10,274,545 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01R 31/24 Testing of discharge tubes during manufacture H01J9/42
• CPC Class Codes: G01R 31/367 Software therefor, e.g. for battery testing using modelling or look-up tables

Abstract

According to one embodiment, a calculation apparatus includes a calculator. The calculator calculates a relationship between a charge amount and a potential according to an arbitrary initial charge amount based on a relationship between a charge amount and a potential of an electrode of a secondary battery on a charge side and a relationship between a charge amount and a potential of the electrode on a discharge side.

Claims

1. A calculation apparatus comprising a first calculator configured to calculate a relationship between a charge amount and a potential according to an arbitrary initial charge amount based on a relationship between a charge amount and a potential of an electrode of a secondary battery on a charge side and a relationship between a charge amount and a potential of the electrode on a discharge side.

2. The apparatus according to claim 1, wherein the first calculator calculates the relationship between the charge amount and the potential according to the arbitrary initial charge amount using a ratio between the relationship between the charge amount and the potential on the charge side and the relationship between the charge amount and the potential on the discharge side.

3. The apparatus according to claim 1, further comprising a second calculator configured to calculate an active material amount of the electrode in accordance with the relationship between the charge amount and the potential according to the arbitrary initial charge amount and a charging history of the secondary battery.

4. The apparatus according to claim 3, further comprising a third calculator configured to calculate a relationship between a charge amount and a voltage of the secondary battery based on the active material amount of the electrode and the relationship between the charge amount and the potential according to the arbitrary initial charge amount.

5. The apparatus according to claim 4, wherein the third calculator calculates a capacity of the secondary battery based on the active material amount of the electrode and the relationship between the charge amount and the voltage of the secondary battery.

11. The apparatus according to claim 2, further comprising a second calculator configured to calculate an active material amount of the electrode in accordance with the relationship between the charge amount and the potential according to the arbitrary initial charge amount and a charging history of the secondary battery.

6. A method executed by an information processing apparatus, the method comprising calculating a relationship between a charge amount and a potential according to an arbitrary initial charge amount based on a relationship between a charge amount and a potential of an electrode of a secondary battery on a charge side and a relationship between a charge amount and a potential of the electrode on a discharge side.

7. The method according to claim 6, wherein the calculating the relationship between the charge amount and the potential according to the arbitrary initial charge amount comprises using a ratio between the relationship between the charge amount and the potential on the charge side and the relationship between the charge amount and the potential on the discharge side.

8. The method according to claim 6, further comprising calculating an active material amount of the electrode in accordance with the relationship between the charge amount and the potential according to the arbitrary initial charge amount and a charging history of the secondary battery.

9. The method according to claim 8, further comprising calculating a relationship between a charge amount and a voltage of the secondary battery based on cue active material amount of the electrode and the relationship between the charge amount and the potential according to the arbitrary initial charge amount.

10. The method according to claim 9, further comprising calculating a capacity of the secondary battery based, on the active material amount of the electrode and the relationship between the charge amount and the voltage of the secondary battery.

12. The method according to claim 7, further comprising calculating an active material amount of the electrode in accordance with the relationship between the charge amount and the potential according to the arbitrary initial charge amount and a charging history of the secondary battery.