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December 28 is the 362nd day of the year (363rd in leap years) in the Gregorian calendar; three days remain until the end of the year. Events [ edit ] Pre-1600 [ edit ]
Triglyceride 3 NaOH / H 2 O Δ 3 × soap 3 × glycerol Triglycerides can be saponified with sodium hydroxide to give glycerol and fatty sodium salt or soap. Typical plant sources include soybeans or palm. Animal-derived tallow is another source. Approximately 950,000 tons per year are produced in the United States and Europe; 350,000 tons of glycerol were produced per year in the U.S. alone ...
December 23 is the 357th day of the year (358th in leap years) in the Gregorian calendar; eight days remain until the end of the year. Events [ edit ] Pre-1600 [ edit ]
The company employs the cell-to-pack method to reduce the inactive weight of its batteries. It increases volume utilization rate by 15% to 20%, doubles the production efficiency and reduces the number of parts for a battery pack by 40%, while the energy density of a battery pack jumps from 140 to 150 Wh/Kg to 200 Wh/Kg.
As of December 2019, the cost of electric vehicle batteries has fallen 87% since 2010 on a per kilowatt-hour basis. Demand for EVBs exceeded 750 GWh in 2023. EVBs have much higher capacities than automotive batteries used for starting, lighting, and ignition (SLI) in combustion cars. The average battery capacity of available EV models reached ...
2785 (July 1972) [1] Peak ranking. No. 1 (July 1971) Robert James Fischer (March 9, 1943 – January 17, 2008) was an American chess grandmaster and the eleventh World Chess Champion. A chess prodigy, he won his first of a record eight US Championships at the age of 14. In 1964, he won with an 11–0 score, the only perfect score in the history ...