Apparatus for estimating rechargeable battery performance according to electrode structure and method thereof

An apparatus for estimating a rechargeable battery performance, the apparatus comprising:

• a communication unit that receives a cumulative intrusion value that is a summed value of volumes of entire pores per unit area of a negative electrode from an apparatus for measuring volumes of pores formed in the negative electrode;
• and
• a processor that estimates charging performance of a rechargeable battery by comparing the cumulative intrusion value and a volume reference value,
• wherein the volume reference value is the cumulative intrusion value corresponding to an expected state-of-charge (SOC) value required for the rechargeable battery at a charge end time when the rechargeable battery is continuously charged.

A method for estimating a rechargeable battery performance, the method comprising:

• receiving a cumulative intrusion value that is a summed value of volumes of entire pores per unit area of a positive electrode from an apparatus for measuring volumes of pores formed in the positive electrode;
• comparing the cumulative intrusion value and a volume reference value;
• and
• determining that a rechargeable battery including the positive electrode satisfies an expected output value when being continuously discharged when the cumulative intrusion value is equal to or greater than the volume reference value as a comparison result,
• wherein the volume reference value is the cumulative intrusion value corresponding to a lowest value of the expected output value.

A method for estimating a rechargeable battery performance, the method comprising:

• receiving a cumulative intrusion value that is a summed value of volumes of entire pores per unit area of a negative electrode from an apparatus for measuring volumes of pores formed in the negative electrode;
• comparing the cumulative intrusion value and a volume reference value;
• and
• determining that a rechargeable battery including the negative electrode satisfies an expected state-of-charge (SOC) value at a charge end time when being continuously charged when the cumulative intrusion value is equal to or greater than the volume reference value as the as a comparison result,
• wherein the volume reference value is the cumulative intrusion value corresponding to the expected SOC value.