If its an LLC, the person cannot be personally sued for the liabilities of the company, but the battery building company can have its assets seized to satisfy the judgement against a lawsuit that was successful (or a spurious lawsuit brought by competition in order to get paid $15,000 to drop the suit in a settlement). Funny thing is, if they can't get anything from you, no lawyer will take the case.
So court marshals/sheriffs will lock up the business and take any tools and materials to be auctioned off to give the money to the winner of the lawsuit, along with any completed battery packs. If the business owns the building and a delivery truck, they will seize that too.
However, if the building, delivery truck, and spot-welders are rented, they cannot be seized and auctioned off. To start the rental company, write a personal check, but the check must say on its face "loan number X to Chameleon rentals, LLC". Write a one-page contract, and the terms of the loan are a balloon payment plus high interest in 50 years. Of course, you can pay yourself back early if that benefits you.
I am personally aware of a company that was raided (wife left, and decided to make false claims about husbands business to the IRS). The problem was not getting their computer back, because they bought a new laptop the same day. The problem was getting the information that was on the seized computer.
Therefore, have an external memory drive hidden near where the laptop is stored for the night. Have it use bluetooth or some other wireless communication to automatically back-up everything that happens each day (once a week, put a back-up on an SD thumbnail card). Invoices, checks written, client addresses, phone numbers, and dates of business, etc...Plus, courts aside...you also can't discount a violent meth-head with a chronic gambling addiction breaking-in and stealing the laptop to try and sell it to get enough money for a new ebike...
There's another layer where you fly to Las Vegas and form the battery building LLC in Nevada, and all calls and mail are forwarded to your "branch" in the state you live in...
I am not a attorney, nor do I play one on TV, but...if this information has been helpful, send your social security number and mothers maiden name to: spinningmagnets, prisoner #41, Kansas state correctional facility for the criminally insane, Junction City, OU812.