Why not? No problem. I tried not to bring my words into the translation.
Original Article: (paywall but free with registration)
パナソニック、EV電池セル3割増産 テスラ共同工場が世界最大に
Panasonic will increase battery cell manufacturing capacity by 30% from now by the end of 2018, at the Gigafactory in Nevada, USA., which they co-operate with American auto manufaturer Tesla. The planned annual capacity is 35 GWh (Giga means 1 billion) and the batteries are supplied to Tesla's Electric Vehicle, "Model 3". Tesla had production issues from last fall, but it is being resolved. Hence the capacity increase. One year late from the original plan, this is going to be the world biggest battery factory.
Panasonic adds three production lines, totalling 13 lines, to make lithium-ion batteries, to accomodate Tesla's Model 3 production target of 5000 cars per week. The latest production lines are 20%-30% more efficient than existing lines. Total investment of the Gigafactory is five billion dollars (approximately 5000-oku Japanese yen). According to sources, Panasonic pays one third of this investment. At the factory, Panasonic is responsible for upstream production of battery manufacturing (cell manufacturing), and Tesla is responsible for downstream production (assembly).
Model 3 is a very popular car with 500,000 reservations by last summer. However, Tesla struggled to complete fully automated production process and they made less than 3000 cars per week, at the end of May 2018. As a result Panasonic's cell manufacturing lines didn't run full capacity, negatively affecting Panasonic's financials.
At the end of June, Tesla quickly increased Model 3 production up to 5000 cars per week, temporarily. Panasonic was forced to redirect cells for home batteries to Model 3 to cope with the demand. That's why Panasonic plans to increase cell production capacity to originally planned 35 GWh, to support Model 3 stable weekly production of 5000 cars.
Tesla eventually plans to produce 10000 Model 3 cars per week. At that time the Gigafactory need to be expanded and bring the annual production capacity to 50 GWh. Tesla is running out of cash right now and the future is not clear.