Your argument at this point is "no, he can't because we never seen [thing] in bale movie.", we never seen something like it because there were never any circumstances where such a thing would be used. Its definetly not irrealistic to picture Bale Batman tricking Wolverine into going somewhere and trapping him. Bale Batman is faster and more agile than Jackman Wolverine so he can stall time and escape from him if needed. He also has all the technology and funds needed either research or develop something that he can use to buy time.
The example of the Neutron Bomb is to show that even in the Bale universe, he has access to highly advanced technology just like any Batman movie or comic. Its a fact. Its irrelevant if [thing against wolverine] was never seen in the Bale movies, Batman still in the same universe as DC and therefore things like Kryptonite, or people Superman still exist.
The only difference being is that the movies by Nolan were trying to be as realistic as possible, so there is in fact a way to trap Wolverine somewhere where he cannot get out of, or create some armor that is Adamantium resistant. Its fiction, its still possible.
Let me give you an example, in the Bale movies, Harvey Dent had his face burned off to a crisp, and yet despite his eye not having any eyelids anymore, his eye is still intact and he's perfectly fine, despite the fact that in real life he would've lost his sight, his eye would've developped an ulcers aswell as a severe infection which would threaten his life (check the risks associated with not blinking for longs periods of time). Are we even gonna talk about all the concussions that Bruce Wayne was revealed to have in the final movie which crippled his body for decades? And yet despite that, he was still able to develop a way to reinforce his body with an exoskeleton and further continue his career as Batman. In real life this is not possible. But this is fiction, therefore, anything is.
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