PATENT CLAIM ANALYSIS

Application Number: 15873886
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["320", "128000"]

Abstract:
Systems and control devices for charging and discharging a lithium-ion battery and relevant methods are provided. A variable frequency triggering oscillation charge-discharge device constructs an oscillation loop with a lithium-ion battery using an inherent impedance characteristic of the lithium-ion battery to charge and/or discharge the lithium-ion battery in the form of an oscillation current generated by the oscillation loop, to avoid direct current (DC) charge-discharge for the lithium-ion battery or battery pack that causes polarization and lithium precipitation of the lithium. Accordingly, the lithium-ion battery has longer battery life, higher charging threshold voltage, higher charge, and controlled internal temperature increase. Thus, the suitable temperature range for the lithium-ion battery is broadened.

Claim (Index 1):
A method of charging or discharging a lithium-ion battery comprising:\n generating two or more oscillation currents by an oscillation loop formed based on an inherent impedance characteristic of the lithium-ion battery itself; and charging the lithium-ion battery with a charging unit with the two or more oscillation currents according to one or more charging parameters, wherein the charging parameters are determined based on one or more status parameters of the lithium-ion battery; or discharging the lithium-ion battery with a load with the two or more oscillation currents according to one or more discharging parameters, wherein the discharging parameters are determined based on one or more status parameters of the lithium-ion battery, wherein:\n the two or more oscillation currents comprise a first oscillation current and a second oscillation current; \n the first oscillation current has a frequency range higher than a frequency range of the second oscillation current; \n the duration T 2  of the first oscillation current is adjusted according to a temperature of the lithium-ion battery (a first battery temperature), and determined by the following formula:\n T 2 =n/fg , wherein: \n n=0 if the first battery temperature\u2265a first working temperature desired for the charging or discharging of the lithium-ion battery; and \n n=1+INT((the first working temperature\u2212the first battery temperature)/x\u2032) if the first battery temperature<the first working temperature, wherein 0.01\u2264x\u2032\u226420, and INT is the integer-valued function; and \n \n the lower limit f cd  and upper limit f g  of the frequency of the second oscillation current are determined by:\n plotting a line parallel to the horizontal axis and through an intersection of EIS at the first working temperature and the vertical axis in the EIS plots with a first state of charge (SOC) in a frequency range; wherein:\n the frequency f cd  corresponds to the intersection of the EIS plot at the first battery temperature and the parallel line in the low frequency region; and \n the frequency f g  corresponds to the intersection of the EIS plot at the first battery temperature and the parallel line in the high frequency region.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 86.0
- Lexical Diversity: 1.75714
- Patent Class: 320.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16083318', '13676762', '15738192', '15024204', '12242700']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7064553850897834
- 35 USC 102 Novelty (BERT): 0.4826003175650023
- Combined Prediction Score: 0.6840698783373054
- Mean Citation Score: 229.292206
- Max Citation Score: 233.02504
- Similarity Product: 193.904296573987

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test