Quiz 3

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Feb 20, 2024

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2/15/23, 3:57 PM : Quiz Submissions - Quiz 03 - Adv. Energy Storage Systems - University of Windsor https://brightspace.uwindsor.ca/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=27338&ai=29183&isInPopup=0&cfql=0&fromQB=0&fr… 1/3 Quiz Submissions - Quiz 03 Shaileshkumar Pushpaben Parmar (username: parmar14) Attempt 1 Written: Jan 27, 2023 2:35 PM - Jan 27, 2023 2:42 PM Submission View Question 1 It is known that the EMF of a battery is 3.8 V. When the battery is charged with 1 A, the terminal voltage measured at 4V. What is the internal resistance of the battery? Question 2 According to the paper ''Electric Cars: The Battery Challenge'', what year did the price of Lithium- ion batteries fall below $2000 per kilo-watt hour? Question 3 A battery of 3000mAh is discharged with 2C/3 rate. Your quiz has been submitted successfully. 0.4Ω 2Ω 0.2Ω 1Ω 1996 2006 2001 2011
2/15/23, 3:57 PM : Quiz Submissions - Quiz 03 - Adv. Energy Storage Systems - University of Windsor https://brightspace.uwindsor.ca/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=27338&ai=29183&isInPopup=0&cfql=0&fromQB=0&fr… 2/3 What is the discharge current and how long will it take to discharge the battery completely? Question 4 Question 5 Which of the following is not true about CC-CV charging? 0.67A & 2hr 1.5A & 2hr 2A & 1.5hr 1.5A & 0.67hr 0.2V 0.4V 2V 4V It will take two hours to completely charge the battery using the CC-CV protocol It will take infinite time to fully charge the battery due to the fact that the terminal voltage cannot be higher than the OCVmax
2/15/23, 3:57 PM : Quiz Submissions - Quiz 03 - Adv. Energy Storage Systems - University of Windsor https://brightspace.uwindsor.ca/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=27338&ai=29183&isInPopup=0&cfql=0&fromQB=0&fr… 3/3 Attempt Score: 5 / 5 - 100 % Overall Grade (highest attempt): 5 / 5 - 100 % Done Charging time can be reduced by increasing the current during the CC portion of the charging, however there is a limit to how much constant current can be used Increasing the voltage above OCVmax might trigger thermal runaway and damage the battery
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