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 10):
A system for charging or discharging a lithium-ion battery, comprising:\n a variable frequency triggering oscillation charging/discharging device, which forms an oscillation loop with the lithium-ion battery to generate two or more oscillation currents for charging or discharging the lithium-ion battery; and a control device that controls the variable frequency triggering oscillation charging/discharging device to supply two or more oscillation currents to the lithium-ion battery according to temperature and a State of Charge (SOC) of the lithium-ion battery of the lithium-ion battery, wherein: the variable frequency triggering oscillation charging/discharging device is to be coupled between a first charging device for charging or a load for discharging and the lithium-ion battery; and the two or more oscillation currents include a first oscillation current and a second oscillation current, and the first oscillation current has a frequency range higher than that of the second oscillation current, wherein:\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 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): 0.7058095539266713
- 35 USC 102 Novelty (BERT): 0.4859292971058895
- Combined Prediction Score: 0.6838215282445932
- Mean Citation Score: 229.292206
- Max Citation Score: 233.02504
- Similarity Product: 186.7079059585905

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