Tesla's battery strategy is drawing mixed reactions between performance gains and exposed limits. Driving range fell more than expected in vehicles using its 4680 batteries. A patent for a new cooling technology to boost efficiency without increasing battery capacity has also been disclosed.

As it pushes both battery in-house production and efficiency innovation, real-world performance verification appears to be emerging as a key task.

• Tesla fitted its own 4680, excluding LG batteries...driving range drops 52 km • Tesla extends range without adding battery...'cooling that removes only heat' patent

Tesla's electric truck Semi is expanding its presence in the commercial vehicle market on performance and economics. As savings in operating costs versus diesel trucks are highlighted, interest from large logistics companies is continuing and appears to be changing the competitive landscape for electric trucks.

As battery capacities for the long-range and standard models are also being specified, analysis says Tesla is accelerating its push into the commercial electric truck market.

• A line forms for the Tesla Semi...electric truck race effectively over • Tesla Semi has an economic edge over diesel trucks..."saves 600 million won over 10 years" • Tesla 'Semi' electric truck battery capacity...822 kWh long-range, 548 kWh standard

Total investment in the mega semiconductor plant 'Terafab' that Elon Musk (일론 머스크) is pursuing in eastern Texas could reach as much as $119 billion (about 172.43 trillion won), it has been found.

SpaceX said, via a public hearing notice filed in Grimes County, Texas, that it plans to invest at least $55 billion (about 79.695 trillion won) in phase one of Terafab. If the overall plan is completed, investment could expand to $119 billion.

• Elon Musk's 'Terafab' takes shape...SpaceX to invest up to $119 billion

Chinese electric vehicle makers such as BYD and Geely Automobile are stepping up their overseas offensive. BYD topped sales in the British market, beating Tesla, Kia and Volkswagen, and its presence grew. Coupled with moves in Canada to cut tariffs, expectations for entry into North America also appear to be rising.

• BYD sets overseas sales record...No. 1 in Britain, beating Tesla, Kia and Volkswagen • China's EVs in a flood as Canada moves to cut tariffs...BYD and Geely landing operation

As competition in the EV market intensifies, changes are also emerging in automakers' in-house strategies. Porsche is closing three affiliates related to batteries, e-bikes and software. It is shifting to sourcing EV batteries externally as it accelerates cost efficiency and business restructuring.

Honda is also putting on hold plans to build an $11 billion electric vehicle and battery production hub in Ontario, Canada, effectively withdrawing its North American electrification strategy.

• Porsche shuts three battery, e-bike and software affiliates...to source EV batteries externally • Honda indefinitely puts on hold $11 billion Canada project...'EV withdrawal' accelerates

South Korea's mobility platform industry is expanding both everyday services and social contribution activities. Whistle introduced a parking enforcement alert service in Tongyeong. Kakao Mobility expanded eligibility for its 'Heroes on the Road' award to include ordinary citizens.

Kakao is also teaming up with Hyundai Motor and the Ministry of Oceans and Fisheries to mark the locations of South Korea's 'sea forests' on its map service for the first time and launch a donation campaign for marine ecosystem conservation.

• Whistle begins Tongyeong parking enforcement alert service • Kakao Mobility expands 'Heroes on the Road' award eligibility to ordinary citizens • Kakao Map joins hands with Hyundai Motor and oceans ministry...marks 'sea forests' on map

In Japan, a low-cost drone made of corrugated cardboard, the Air Kamui 150, is drawing attention. The aircraft is a lightweight fixed-wing drone that uses waterproof-coated corrugated cardboard as its main material. The unit price is about $2,000 to $2,500. With electric propulsion, it can fly about 50 miles or stay aloft for about 80 minutes. It can carry up to 3 pounds of payload and be used for one-time attack missions fitted with reconnaissance equipment or small munitions.

• Japan moves to develop corrugated cardboard drone for one-time attacks...about $2,000 per unit

Competition over next-generation batteries is also intensifying in the electric bicycle market. Ride1Up unveiled an e-bike using a semi-solid-state battery, joining the race to commercialise the technology.

As expectations grow for improvements in charging speed, safety and battery life, semi-solid-state batteries appear to be emerging as a new axis of technology competition in the e-bike market.

• Ride1Up unveils first electric bicycle using semi-solid-state battery • Captures charging, fire and lifespan...semi-solid-state battery e-bikes enter commercialisation stage

Honda is developing a simulation e-clutch system that includes haptic feedback and a torque-boost function to reproduce the precise control feel and explosive acceleration typical of internal combustion engines, while maintaining the convenience of electric motorcycles.

• Even engine vibration 그대로...Honda simulation clutch patent for electric motorcycles