WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Lithium-ion battery
Rare card · Science
Lithium-ion battery, a Rare card
A lithium-ion battery or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of lithium ions into electronically conducting solids to store energy.
- Rarity
- Rare
- Domain
- Science
- ATK
- 92
- DEF
- 85
- Power
- 177
- Wikipedia reads a year
- 380,000
Power 177 (ATK + DEF): stronger than 90 % of WikiCards cards.
Lithium-ion battery quiz: 3 questions
Three questions on the Lithium-ion battery card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
There are many different varieties, which are usually categorized by the ______ used in the cathode.
Answer
materials. There are many different varieties, which are usually categorized by the materials used in the cathode. From the Lithium-ion battery article on Wikipedia.
In which decade?
In the three decades since Li-ion batteries were first sold in ____, their volumetric energy density increased threefold while their cost dropped tenfold.
Answer
1990s. In the three decades since Li-ion batteries were first sold in 1991, their volumetric energy density increased threefold while their cost dropped tenfold. From the Lithium-ion battery article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Lithium-ion battery. Lithium-ion battery 92 · Principal component analysis 88 · Anxiety 85 · Sputnik 1 82 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- There are many different varieties, which are usually categorized by the materials used in the cathode.
- Compared to other rechargeable battery types, they generally have higher specific energy, energy density, and energy efficiency and a longer cycle life and calendar life.
- In the three decades since Li-ion batteries were first sold in 1991, their volumetric energy density increased threefold while their cost dropped tenfold.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Lithium-ion battery article was read about 380,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 92 and blocks with 85: each hit it takes is cut by 34 %.
How to get Lithium-ion battery
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Lithium-ion battery in the power ranking, all domains together.
- SugarRare · Society · ATK 80 DEF 97
- Arab–Israeli conflictRare · Society · ATK 87 DEF 90
- DubrovnikRare · Society · ATK 87 DEF 90
- Principal component analysisRare · Science · ATK 88 DEF 89
- TianjinRare · Society · ATK 90 DEF 87
- CampaniaRare · Society · ATK 85 DEF 92
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Lithium-ion battery (revision), CC BY-SA 4.0. Photo : Kristoferb, CC BY-SA 3.0, Wikimedia Commons.
