CHARGING METHOD OF SECONDARY BATTERY
First Claim
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1. A charging method of a secondary battery comprising:
- a first charging step of charging the secondary battery at a first C-rate from an initial charge voltage to a first charge voltage; and
a second charging step of charging the secondary battery to a target voltage while gradually decreasing a C-rate within a range not exceeding the first C-rate after the voltage of the secondary battery reached the first charge voltage.
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Abstract
Disclosed herein is a charging method of a secondary battery including a first charging step of charging the secondary battery at a first C-rate from an initial charge voltage to a first charge voltage and a second charging step of charging the secondary battery to a target voltage while gradually decreasing a C-rate within a range not exceeding the first C-rate after the voltage of the secondary battery reached the first charge voltage. Consequently, it is possible to prevent deterioration of the battery, thereby improving lifespan characteristics of the battery.
18 Citations
12 Claims
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1. A charging method of a secondary battery comprising:
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a first charging step of charging the secondary battery at a first C-rate from an initial charge voltage to a first charge voltage; and a second charging step of charging the secondary battery to a target voltage while gradually decreasing a C-rate within a range not exceeding the first C-rate after the voltage of the secondary battery reached the first charge voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification