Electric battery
Power source with electrochemical cells
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| March 18 2025 | SK Innovation released its Annual Report for the Fiscal Year 2024, detailing the company's corporate governance and shareholder structure. |
| 2025 | Northvolt plans to start production of lithium-ion batteries at a new factory near the Volvo plant in Gothenburg, which will supply batteries to Volvo and Polestar brands. |
| February 2025 | BYD Energy Storage announced a contract with Saudi Electricity Company to provide 12.5 GWh of energy storage. |
| February 2025 | SK On merged with SK Enterm, further consolidating the company's organizational structure. |
| January 13 2025 | Sold remaining stakes in Hydrovolt, its battery recycler division, to Norsk Hydro for 78 million Norwegian crowns. |
| January 7 2025 | Announced plans to continue developing battery cells while seeking funds to exit bankruptcy proceedings. |
| 2024 | BYD hired close to 200,000 new employees specifically in car manufacturing and components. |
| 2024 | BYD became the second largest electric vehicle battery producer globally, producing 17.2% of the world's output through its FinDreams Battery subsidiary. |
| 2024 | Northvolt Fem gigafactory is scheduled to open in Borlänge, Sweden, with a planned peak capacity of over 100 gigawatt hours of cathode material. |
| December 4 2024 | Announced plans to sell its electric industrial battery division and shut down its energy storage systems division. |
| November 2024 | SK Innovation and SK E&S completed a merger, creating a new entity with total assets of KRW 105 trillion. Simultaneously, SK On merged with SK Trading International. |
| November 21 2024 | Northvolt filed for protection under Chapter 11 of the United States Bankruptcy Code, signaling financial challenges for the battery manufacturing company. |
| October 30 2024 | Volvo Cars announces its intention to invoke redemption rights to acquire Northvolt's shares in the Novo Energy joint venture, citing Northvolt's failure to meet financing obligations. |
| October 27 2024 | LG Chem opened its third overseas research and development center in Germany to develop environment-friendly, next-generation technologies. |
| October 8 2024 | Northvolt's subsidiary Northvolt Ett Expansion AB filed for bankruptcy at the District Court of Stockholm. |
| September 23 2024 | Announced extensive staff reductions of 1,600 employees across Skellefteå, Västerås, and Stockholm, and discontinued the expansion of Northvolt Ett. |
| September 22 2024 | LG Chem announced plans to supply cathode materials to Prime Planet Energy & Solutions Inc. (PPES), a Japanese battery joint venture between Toyota Motor Corp. and Panasonic Corp. |
| July 2024 | Reports emerged that BYD Electronics became part of the iPhone 16 supply chain, with production moving back to China from India. |
| May 2024 | BYD Electronics was announced to be added to Hong Kong's Hang Seng Index. |
| March 2024 | Became a cell supplier to Tesla's energy storage manufacturing in China, set to provide 20 percent of cells for Megapack production starting first quarter of 2025. |
| February 2024 | Signed an 8-year agreement with BorgWarner to supply blade cells and provide battery pack design intellectual property licensing for production in Europe, Americas, and Asia Pacific regions. |
| January 2024 | SK Enthem became the 9th subsidiary of SK Innovation, spinning off from SK Energy to handle import and distribution of crude oil and petroleum products. |
| January 2024 | Construction began on a CN¥10 billion sodium-ion battery manufacturing plant with 30 GWh annual production capacity. |
| January 2024 |
Betavoltaic device
Betavolt, a Chinese startup, announces a prototype betavoltaic battery using Carbon-14 or nickel-63, claiming to generate 100 microwatts of power with a 3V voltage and a 50-year lifetime. The device is reportedly in the pilot testing stage and is described as the first miniaturized device of its kind.
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| January 2024 | Northvolt raised $5 billion through green lending. |
| January 2024 | Northvolt Drei project was put on hold due to high electricity prices in Germany, delaying the originally planned 2025 production start. |
| January 2024 | Northvolt Drei gigafactory received €902 million in funding approval from the European Commission under the TCTF aid initiative, with local municipality approvals, scheduling production to start in 2025. |
| 2023 | Panasonic introduces 'Make New' slogan for the Japanese market. |
| 2023 | LG Chem acquired AVEO Pharmaceuticals, a U.S. bio firm specializing in renal cell carcinoma, for US$571 million, expanding its life sciences business portfolio. |
| 2023 | Record-breaking year with revenue reaching 602 billion yuan and net income hitting 30.0 billion yuan. Employee count grows to 703,000. Passenger car sales surge to 3.0 million units, marking a significant milestone for the company. |
| 2023 | BYD invested 6% of its operating income in R&D and recruited 33,000 new R&D personnel, bringing the total R&D workforce to 102,000. 60% of these R&D employees are under the age of 30. |
| 2023 | BYD's automotive business increased to contribute over 80% of the company's total revenue. The company was ranked 212th on the Fortune Global 500. |
| 2023 | For the first three quarters, the factory produced 79.8 MWh of battery storage equivalent. |
| December 31 2023 | BYD reached 704,000 employees after hiring 133,000 new employees during the year, nearly doubling Toyota's workforce of 375,000. |
| September 2023 | FAW-FinDreams battery pack plant became fully operational. |
| September 2023 | Northvolt announced plans to build a new battery gigafactory near Montreal, Canada, with initial production intended to start in 2026. |
| September 2023 | Quebec official Pierre Fitzgibbon indicated that the Northvolt Six factory's timeline is likely to be delayed by 12 to 18 months from the original 2026 production start date. |
| September 2023 | Photo Systems Inc. acquired the brand rights for Kodak professional photo chemistry directly from Eastman Kodak, with plans to re-introduce the full range of photochemistry products. |
| August 2023 | The U.S. Department of Commerce issued a final determination that BYD circumvented solar panel tariffs. |
| August 2023 | BYD Electronics agreed to purchase several Chinese factories from Jabil, a U.S. manufacturer that supplies components to Apple. |
| August 22 2023 | Northvolt raised $1.2 billion with plans to open a battery plant in Canada. |
| July 2023 | First battery pack rolled off the FAW-FinDreams joint venture plant. |
| June 2023 | FinDreams Battery established a joint venture with Huaihai Holding Group to create the world's largest sodium-ion battery supplier. |
| January 2023 | Sino Promise decided to exit the professional photo chemistry business. |
| 2022 | SK On ranked fifth in the world with a market share of 7 percent according to SNE research in the first half of the year. |
| 2022 | Panasonic adopts two new global slogans: 'Live Your Best' and 'Create Today. Enrich Tomorrow'. |
| 2022 | Substantial growth continues with revenue more than doubling to 424 billion yuan. Net income increases to 16.6 billion yuan. Employee count rises to 570,000. Passenger car sales significantly increase to 1.8 million units. |
| 2022 | BYD doubled its R&D investment compared to the previous year, significantly increasing its research and development budget. |
| 2022 | BYD became the largest privately owned company in China by workforce, ranking below only several state-owned companies. |
| 2022 | The U.S. Department of Commerce found that BYD circumvented tariffs on solar panels by routing operations through Southeast Asian countries. |
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This contents of the box above is based on material from the Wikipedia articles BYD Company, SK Innovation, Betavoltaic device, Panasonic, Kodak, Northvolt & LG Chem, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.